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Domestic Building Services Compliance Guide

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5. 5 1 1 eAA1ou Wia SAs 10 SPAePUL S lqEL Section 2 Gas fired space heating and hot water systems 17 s sod nd ns ulop 104 SUP uonpP lquloo a6es0 s 191M JOY 1 ddoD 96 SY SI U 4ajeM DE10 g lpul JOJ 011221 000 ideins IeM 692 1 NIS SPOYJOW 1s pue s u uu uImb v SIE PUI AD J ddo3 u do s sod nd ns ulop 104 si pul D 1D JIpul elo 2002 9981 58 Sp4epue s 5148 NBI 1 25 V 0U TVUVVVA WOJ DEO U MOD aad 104 QP HPAP 51 uone2IJip9 ds abesojs jeuoy V AH PUL 9007 6871 N4S8 YUM DUBDIODD Ul p s PINOYS 5219 2 1 y 10 uln OA Y SI A J U AA XED UN Lech LGO 0 Z 0 X87 1 D p 2x JOU p nous sso Buipue1s VM 40 lpunoD Ydeasay 1972M ay JuawaHy Jo pieog 5114 ay se u5ns Apog 1s 1 p 1Ip J22e ue Aq 195 se puepue s juajeainba ue 10 9002 268Z1 NI Sg yim p nous s anpoud 0 15 5 DE101S 1972M JOY p zu nuN D s Io s IPUL U JOJ 2110 05 DUP LOH QR 95 JOH 94 JO sjUaWaJINDad uone nsul u11 uu pinoys 54 5 5 Bejols Apuluq 2 186 1 86 1 58 YM iduuo p nous s iun uonpulqulo abesojs JayeM yoy s ddo q L Hed 2002 996 58 JO slu uu unb l
6. Wia SAs u r LH 10 spiepue suinuululuu 6 lqEL 40 Domestic Building Services Compliance Guide 2010 Edition GOLD 104 p insuoo q PINOYS l lloq v Seale JJM YOS Uf UND AIEWULA Joo y o osje nq sde 1942m HulyULp O uO JOU 1 5 A p U N OSUn p J O QESIADE sI pauayos Ayenyipe SI JOLUGIYU UOISOLIOD JO BDIOYD BY 2u njJul Aew siv pue UOISO UOD JO 5 ue sey JAJEM 1108 15U S OU 6S S SUV S S Bune u jenu 1 5 A JOY 2I s uuop Ul JO u ul e 1J JO 2 900C 6682 58 SI1U9UU eO n JAJEM DIEDUEIS ueA J 1 U 5 JAJEM JO SIBINPAs P S 3n OJ D J Dulsop azeydsoyd jod JAo1Iqiuu lp s uli JO Jo a eJ BY 2np l O S4 10Q uollpuiquuo2 JO 11 1J eAA1ou ay pue S1972 y 1972M O y 42317 O pPul aq pinous suolsiAo4d l In D2eJnueul y Aq pauinbau H pue Uolillul Jad sued 002 sp 2x ss upieu Ja EM 820 SUIELU AY J UAA D sl pouu 1J ioq JENPIAIPU JO stu uu uinb l jeD ds pue spnpod 1u uul e 1 a eludoidde 104 suolpniulsul uolngjje1su SJaINJDe NUeW J jioq y 0 os e p nous s4 je su 3 6pnis pue lP S JO UODELLUOL y pue UOISOJ109 01 U02 O UPOID Aeuulid y 0 pa
7. 15 1 y u Aejd o e aAeY UeD s U 1 J Bueu gt 5x 1e u pue 550 1694 ay duio2 1 S 40 S JOY pinoys SI SS A aHeso s JOY Jaddod Doan e 02 6une u uoneuuoyul Aveyuawajddns swa sAs 1u ui 3e d 1 pue M N l n pilos p nunuo Bune u le nu f n pijos 10 Buluolssiululo pue uonesedaid wa sAs 5 104 5 jan UOL 5 5 104 spiepue s p pu uuuio3 ti 07 lqEL 70 Domestic Building Services Compliance Guide 2010 Edition SIOJEIPE BY HO P S osje nq UNID Bune u ay uo JOU 18 osi ULI 150 S AJEA JOJEIPe 1511 O lQESIADE SI II DUPU UPUL JO ADIAJAS bunou UBYM JUS eas 1072M pue Buen u nb suo2 pue sso O U 1O IQIUUI JO 2IOUD2 BY UO 2I DE 10 2 pinous 19 109 Y sease HOS UJ HUND l lloq v o Osje nq sde 109 em bupyuup o uo JOU 0 QES ADE 51 Sl pOuu d lloq jenpiAIpui JO S UaLWaJINDad jeD ds pue si9npoid 1 104 suononiulsui uollej e1sui 5 J ioq v 0 os je p nous si je su 9002 666 58 Ul U A suu s s U
8. aq p nous fonuo y ojluo2 o p h q PINOYS A PA UO aa ainyesodwiay YONS SadUEJSLUNDID BWOS H poyu y e JO A PA UOZ e pue 1215011 1 v e Oe 5 pue SWOOJ ul ULY 19470 sioleIpel SUl s S Mau 10 Pauljap JE UO SAYL S A PA 1O E PE4 3il1e souuu ul SI A y aq SE U ns S OUJUOD JOJeIPeI ENPIAIPU i pinous sionuoo os o1 pue 5 002 e Ul S E SOWJAY B6une u DIWOUODA pue qe2l 2e1d a qeuWeJHO1d 1 S e SOWWAY WOO 7 adeds Jo j01 U09 SI1I Se yey se ing paplAoid aq p nous y y ul linb i WNWIUIW ON e UL S UOZ JO 2 ayesedas e Ob 6une u Aseyuawajddns sui s s 1u uu 2e d ti Sul SAS M N l n pilos p nunuo2 swiaysAs bune u ISIua f n pilos yo 043 402 10 5 uinuuiuitu p pu uutuuo32 u LZ lqEL 74 Domestic Building Services Compliance Guide 2010 Edition Table 22 Recommended minimum standards for insulation of pipevvork in solid fuel central heating systems Nevv systems Supplementary information a Pipes should be insulated to comply vvith the Insulation of pipework in unheated maximum permissible heat loss indicated in the areas Supplementary Information column and labelled Extra provision may need to
9. The efficiency of this appliance has been measured as specified in insert appropriate entry from Table 7 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data has been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings Table 7 Acceptable types of natural gas and LPG fired fixed independent appliances for secondary space heating BS EN 1266 2002 Independent gas fired convection heaters incorporating a fan to assist transportation of combustion air and or flue gases BS 7977 1 2002 Specification for safety and rational use of energy of domestic gas appliances Radiant convectors BS EN 613 2001 Independent gas fired convection heaters BS EN 13278 2003 Open fronted gas fired independent space heaters Flueless Thermal efficiency requirements for this BS EN 14829 2007 Independent gas fired type of appliance are not specified as all flueless space heaters for nominal heat input the heat produced by the combustion not exceeding 6 kW process is released into the space to be BS EN 449 2002 Specification for dedicated heated In 7 7 eile EE e liquefied petroleum gas appliances tnese appliances is classed as 7 e and Domestic flueless space heaters including an adjustment is made for ventilation diffusive catalytic c
10. Unless stated otherwise the guidance applies equally to appliances that burn wood wood pellets house coal manufactured smokeless fuels and anthracite For central heating systems with a solid fuel appliance installed as anew system or replacement system in dwellings a the appliance should be from HETAS categories D F G and J in Table 18 and have a minimum efficiency gross calorific value which is not less than the value specified for its category b the ratio of room heat to water heat should be appropriate for the room and total property This will require reference to installation practice guidelines and calculation of room and property heat loss Advice on this is given in the HETAS Guide and website Section 5 Solid fuel heating systems 67 c circulation fuel storage hot water storage system preparation water treatment and commissioning should be to the standards in Table 20 d control of heating and hot water circuits should be to the standards in Table 21 e pipework should be insulated to the standards in Table 22 Supplementary information Turn down values i e the ratio of high to low output a Turn down ratios are generally very good gt 10 1 for automatic feed appliances with small firebeds b Turn down ratios are less good with large batch fed appliances unless the latter are used in conjunction with a hot water accumulator c Automatic appliances are likely to require less frequent refuelli
11. p llonuo jje3iel souuj u OM J04 UOISIAOJd pue JO ULM Da 4012 aq Jaa p nous siapul AD e OE SJapUI AD payeay MIEL SE Sp SPUN uolleuiquuo2 payeay e2112 o s l dde siy s ni l BUNJOA Japul AD euluuou y SI AeP UM gt ez LSO OFZ 0 X SLL O Au2u1ee p 2x JOU s op SSO JeaY 1194 JEU U ns p pinsul Aq Alieuuud aq p nous Ayu peje Ag MUELUUO p ze y si pull42 q payeay si pull4 suole nD6 i Dumping unu Bu duio2 B6uipnpui se Apog p 1Ip J22e 19470 JO DUNO D U P S N 1 BAN SW S S JuaWaIBY JO pieog USDUg ay q Daa aq 10 16821 N3 Sg UM Aj dwod p nouss1onpoid e oz uoneuuo ul sw s s zu wejd pue M N 6une u 317923 swiaysAs Bune u e4 U9 JAM 31n2 l Beiols 19 EM 104 40 5 Ulnululul S lqEL 58 Domestic Building Services Compliance Guide 2010 Edition 6une u JAJEM EJOS LL U ODD S S suu 1s s Jeudy 05 ul S SS A DE10O S JOY JO Bul j qe 404 Qoq Sg JO S JUaWaJINbaJ JabUeYIx a ze y pue sso l1e u y YIM Bu duuo2 se p qe aq p nous uol nau suo2 Joo Jo JOU YDIIYM SJBPUI AD Pa Ua UV V S O1 UOD qilenb 1 leAlnb ue 0 JO sn1e s WI 19 S
12. 42 Domestic Building Services Compliance Guide 2010 Edition JOUUCUI U D LH pue apes e ul buljesodo 1 J J ABY 1841 pue ay Jo BuluoissIuuuuoD y 2 Avy 164 moys pue o 1 1 42 W404 23140 duuo2 p nous saduel dde pal llO JO sq ulSu BuluoIssiuuuuoD 11 042 1u uun5odq p llonuo BUIUOISSIUILUOD 2uel dde Jeu o solid HUIUOISSILULUOD l 5 S m pue pue adueldde p uj llO Ue JO uoneJje su y nup lduloo Ady 24 moys O 01 42 U4OF D4140 duuo2 p nous sigaulbua BulJJe sul 01 42 1u u n oq 11 2 qu uudinb v YUM OdSSed 19 109 14 Jo 1102 8 01 42 suuoj Aew sq qul uu bulinjdesnuew adueldde HO 23140 SH E3SU 151SSP SO HUIUOISSILILUOD pue uoleJ e sul no Bu ue2 si u1o 104 Q IPAP ase 5 papuelg 94140 UOU pue SUOSJ d 1U dulO Buluols p v s b y 24140 40 sn ay 10 51 ase swo PapUuelg 23120 015 uoneuuo ul sui s s uUaWade day swa sAs M N 1 AA sus s4s Bune u le nu JOM 1 104 Buiuoissituutuo3 pue uonesedaid uu 1s s apelos 19 eM JOY l 3s4s 10 SPAEPUL S PAPUB
13. Copper indirect cylinders for domestic purposes BS 4814 1990 Specifications for expansion vessels using an internal diaphragm for sealed hot water heating systems BS 7074 Application selection and installation of expansion vessels and ancillary equipment for sealed water systems BS 5422 2009 Methods of specifying thermal insulation materials on pipes ductwork and equipment in the temperature range of 40 C to 700 C BS 5449 1990 Specification of forced circulation hot water central heating systems for domestic premises BS 6701 2010 Telecommunications equipment and telecommunications cabling BS 5970 2001 Code of practice for thermal insulation of pipes and equipment BS 6700 2006 Specification and design installation testing and maintenance of services supplying water for domestic uses within buildings and their curtilages 122 Domestic Building Services Compliance Guide 2010 Edition Section 12 Lighting 12 1 Scope of guidance This section provides guidance on the specification of fixed internal and external lighting for new and existing dvvellings to meet relevant eneroy efficiency requirements in building regulations 12 2 Keyterms Circuit vvatt means the power consumed in lighting circuits bylamps and where applicable their associated control gear including transformers and drivers and power factor correction equipment Light fitting means a fixed light or l
14. pue Huru a esedas BulAeu ype sauoz Huljeay eds OM jSeaQ YIM paplAoid aq pinous AU OS uey SWI JS S Mau JO pauljap ease ajqgesn 1530 e YIM sbuljjamq q SI l v aq ease P NOYs sionuoo os O u1 o pau isse 51 YDIYM JO uO 2 DIWOUODIa pue qe2l 2eJd 1u pu d pul y m s uoz Huljeay SI 11 Se se ing DEdS OM Sea 16 OU pinous z l OSL Buiuoz u uJ uib j WNWIUILU ON o dn ease 100 qesn 270 e YUM sbHul jamq e 02 s uc dde op Du mg y 10 olluo2 21 190 oe Buiuinq aU JO 2 3le souu ul e 9 e1 01 s s u do 3d x s upildde V uoneuuo ul Aseyuawajddns suu s s juawade day swia sAs Man 6une u l n PIOS swia sAs Bune u Ie nu n pilos J01 U09 10 5 papuawwo y LZ lqEL Section 5 Solid fuel heating systems 73 OJUOD y2oJu u Jajiog pue ainjesadwe pue bull Duluoz palads v s uu 150 uu s s 04 UOD 1 19 109 Aue Aq papiAosd aq Aew sionquo s ni 49410 pnpul o si bepyoed Huyeay ay Ji ilep ds 101NPejnuew y Woy 2uepin6 y s o JUELOAUI 51 1 JO4JUOD QUOZ I NUI pue UOIJESUBALUOD JOYZEI
15. 11 2 Indirect systems Lighting 12 1 Scope of guidance 12 2 Key terms 12 3 Internal and external lighting Micro combined heat and povver packages 13 1 Scope of guidance 13 2 Key terms 13 3 Micro CHP systems Heating system circulators 14 1 Scope of guidance 14 2 Circulators 78 78 90 90 97 97 99 101 101 109 109 111 111 122 122 122 125 125 126 127 127 Section 1 Introduction 5 Section 1 Introduction Note Any reference to building regulations in this guide is to building regulations in England Wales Scotland and Northern Ireland 1 1 Scope This guide provides detailed guidance for persons installing fixed building services in new and existing domestic buildings to help them comply with building regulations It covers work on both new systems and replacement systems identifying the differing requirements where these exist This edition of the guide covers conventional means of providing primary space heating domestic hot water mechanical ventilation comfort cooling and interior lighting In addition it covers low carbon generation of heat by heat pumps solar themal panels and micro combined heat and power systems The guide also refers to publications which include information on good practice for design and installation over and above the recommended minimum standards in this guide 1 2 Innovative systems It is important to note that this guide covers a range of
16. DUPU X JeaY pue SSO 15 U BY AU sllun uolleuiquio2 pue si pull Jabueyoxa e y pue sso 1e u a6e10 s u u q ddoo o Jaddod zu wejd 1 10 q y UU duuo2 p nous si pull Ja eM OH UE WOJ APU SI JAPUI AD EA nq sul s S Mau 10 sv e 5 Ja eM 104 Jaddod e 02 A1ejyu uu ddns sui s s uawade day swa shs M N Bune y z m 1 5 suia sAs Bune u Lann pailj seb 10 1 1551 2 pue uonesedaid 5 5 5 1 1eAA1ou uone n24D Wia SAs uN 10 5 lqEL 18 Domestic Building Services Compliance Guide 2010 Edition UONDIS suon s 1ueA u S S ndul Jeay 19470 JO slu uu uinb 1 B lil qe 104 se s rpoq uoneip lo2e jo sobo pue 68Z1 58 99S1 sg 6 5 WA UTAN oupl dulo Pnpod o 52u J J u MA ul BDUELWOJJed J Bueu gt 5x Jeay Aep U u sso 1e u Hulpueys s ni l qi2ede2 euluuou g1O s 24 10 yun uonguiquuo2 pa UaAUN D U A J SS A JO adA BY Y M e AUS PINOYS sJ SS A OU IN pull o y JO uun OA BY SI A KEP UMY Lech G0 0F
17. Domestic Building Services Compliance Guide 2010 Edition April 2010 Department for Communities and Local Government Published by NBS part of RIBA Enterprises Ltd and available from RIBA Bookshops Mail Order 15 Bonhill Street London EC2P 2EA Telephone orders General enquiries 020 7256 7222 Fax orders 020 7374 2737 Email orders sales ribabookshops com Or order online at vvvvvv thenbs comv buildingregs RIBA Bookshops RIBA 66 Portland Place London W1B 1AD Telephone 020 7256 7222 Birmingham amp Midland Institute Margaret Street Birmingham B3 3SP Telephone 0121 233 2321 RSUA 2 Mount Charles Belfast BT7 1NZ Telephone 02890 323 760 CUBE 113 115 Portland Street Manchester M1 6DW Telephone 0161 236 7691 milkandsugar 82 Wood Street Liverpool L1 4DQ Telephone 0151 707 4380 ISBN 978 1 85946 3772 Stock code 72347 Crown Copyright 2010 Copyright in the typographical arrangement rests with the Crown This publication excluding logos may be reproduced free of charge in any format or medium for research private study or for internal circulation within an organisation This is subject to it being reproduced accurately and not used in a misleading context The material must be acknowledged as Crown copyright and the title of the publication specified Any other use of the contents of this publication would require a copyright licence Please apply for a Click Use Licence for core material at www opsi gov uk click u
18. Pipes should be insulated to comply with the maximum permissible heat loss indicated in the Supplementary Information column and labelled accordingly as follows Primary circulation pipes for heating and hot Insulation of pipework in unheated areas Extra provision may need to be made to protect central heating and hot water pipework in unheated areas against freezing Guidance is avallable in water circuits should be insulated wherever BS 5422 2009 Method for specifying they pass outside the heated living space or thermal insulating materials Tor pipes through voids which communicate with and tanks vessels ductvvork and equlpment are ventilated from unheated spaces operating vvithin the temperature range li Primary circulation pipes for domestic 40 C to 700 C hot water circuits should be insulated BRE Report No 262 Thermal insulation throughout their length subject only to avoiding risks 2002 Edition practical constraints imposed by the need to penetrate joists and other structural elements Where insulation is labelled as complying with this guide it must not exceed the following l heat loss levels iii All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If
19. A PA uOZ e pue zezsow y JapUl AD e 1ou JO 1 pauuejd 104 SWaysAs Mau JOJSV pl YIM aq 045 54 15 5 JOY 2159 e 09 pue 1504 Y IM 54 y l uey J u O SIOLEIPCL IS UO SAYL 15 0 1 Sp YINS s OJ1uoOD2 enpiAIDUI pue S9UOZ je Ul S15 SOUL U J0 511501 WOO 7 2 095 0 3 02 Duren aq p nous x SUH S S Mau SV e y UlUlAA S UOZ JO O4JUOD e Oe sui s s1u uu 2e d tui swia sAs M N 6une u M swiaysAs Bune su 21 U9 JAM JO 01 UOD JO 5 OL lqEL 46 Domestic Building Services Compliance Guide 2010 Edition o p u JOU SBOP YOMadid pue qe Ins 5 Y PAPIAOIA e souu u UIEU BY Ul WOOL AY Ul UPU 1 U20 SJO EIpeJ UE UO JUa eAINDa 10 S A PA I JEJSOWWAUY 2151 o POOH aq pjnom 1 UMOp p uleip q o sey l s y asnedaq Juawiade Aea Ja liog e JO sp y u suonen HUIPJING YIM adUel AWOD JOY 1 55 JO
20. Microgeneration Certification Scheme MIS 3005 Requirements for contractors undertaking the supply design installation set to work commissioning and handover of microgeneration heat pump systems BERR 2008 FU Ecolabel Establishing the ecological criteria for the award of the Community eco label to electrically driven gas driven or gas absorption heat pumps Heat Pump Association data sheet Air to water heat pumps HVCA TR30 Guide to good practice Heat pumps Section 10 Comfort cooling systems 109 Section 10 Comfort cooling systems 10 1 Scope of guidance This section provides guidance on the specification of fixed mechanical comfort cooling systems in dwellings to meet relevant energy efficiency requirements in building regulations Dwellings should always be designed to avoid or minimise the need for cooling through the appropriate use of solar control secure ventilation and thermal mass 10 2 Alr cooled and water cooled air conditioners Cooling systems in new and existing dvvellings should a meetthe minimum standards for efficiency in Table 36 and b be controlled to prevent simultaneous heating and cooling of the same space within the dwelling 110 Domestic Building Services Compliance Guide 2010 Edition Table 36 Recommended minimum standards for comfort cooling have an EER greater than 2 4 Water cooled air conditioners working in cooling mode should have an E
21. continued Outside a smoke control area house coal or wood can be burnt on non exempted appliances Wood should always be seasoned to a moisture content appropriate to the design and performance of the appliance for example log wood not exceeding 20 to ensure maximum performance and limit the occurrence of condensation and deposits in the chimney system All solid fuel appliances require appropriate soot fire resistant chimneys discharging at high level locations as defined within building regulations Details of HETAS approved chimney products independently tested and approved to accepted standards can be found on the HETAS website The natural ventilation rates of these chimneys may be less than the default values listed within SAP 2009 the use of these more accurate values will reduce SAP values 5 3 Central heating systems using certain types of solid fuel appliances This section provides guidance on the following types of solid fuel appliance used to deliver primary heating as part of a central heating system batch fed open fires with high output boilers appliance types D1 to D4 in Table 18 batch fed and automatic feed room heaters and stoves with boilers appliance type F in Table 18 batch fed cookers with boilers appliance type G2 in Table 18 batch fed independent boilers and automatic feed anthracite wood log wood pellet and wood chip fired independent boilers appliance types J1 to J5 in Table 18
22. dwelling owner or user as applicable A separate certificate is required to cover the installation and commissioning of the hot water storage vessels and appliances within a solar DHW system A commissioning engineer should be a competent person who can personally testify by signature and date that the equipment has been commissioned 3 0 Documentation a Nominimum standard Information concerning the solar DHW system should be provided to the dwelling owner or user as applicable The documentation should include user s manual e warranty information a recommended maintenance schedule commissioning certificate e fullcontact details of the installer Section 11 Solar water heating 119 Table 39 Recommended minimum standards for insulation of pipework in solar hot water systems New and replacement systems Supplementary information a All pipes of asolar primary system The insulation should be suitably rated for should be insulated throughout the the maximum foreseeable pipe temperature length of the circuit applicable and where external also be b All other pipes connected to hot resistant to vermin attack and climatic water storage vessels including the degradation vent pipe should be insulated for Ina dwelling that already has a solar hot at least 1 metre from their points water system it isrecommended that the of connection to the cylinder or in
23. is replaced in an existing system any pipes that 12mm 7 35 Wim are exposed as part of the work or are otherwise Ia 7 89 W m accessible should be insulated as recommended 22mm 9 12 W m above or to some lesser standard where practical constraints dictate 28mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54mm 14 12 W m n assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations Section 5 Solid fuel heating systems 75 5 4 Solid fuel appliances for secondary heating Solid fuel appliances in nevv and existing dvvellings that are provided for secondary heating and are not part of a central heating system should have an efficiency gross calorific value not less than specified in Table 18 for that category of appliance Supplementary information on solid fuel appliances providing secondary heating Minimum efficiencies Minimum efficiencies for solid fuel appliances are published in the HETAS Official guide to approved solid fuel products and services and on the website www hetas co uk Manufacturers efficiency figures may be higher than those indicated and should be us
24. should be at least as high as that used in the buried part of the system Enhanced insulation standards should be evaluated where community heating is supplied only from fossil fuelled boilers or where flow temperatures over 100 C are being used Designing for minimum heat losses Heat losses can be reduced by optimising operating temperatures In conjunction with the need to minimise pumping energy Variable volume control systems will assist in maintaining low return temperatures Whilst some bypasses may be needed to maintain the system in a hot condition ready to meet the demand these should be controlled to the minimum flovv needed The use Of temperature controlled bypass valves where the bypass only operates vvhen flow temperature has dropped belovv a set level is recommended Further guidance and standards Good Practice Guide GPG234 Guide to community heating and CHP Commercial public and domestic applications Available from the Carbon Trust BS EN 13941 2003 Design and installation of pre insulated bonded pipe systems for direct heating BS EN 14419 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Surveillance systems BS EN 253 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Pipe assembly of steelservice pipe polyurethane thermal insulation and outer casing of polyethylene BS EN 448
25. should be divided into at least two zones with independent temperature control one of which is assigned to the living area Dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls than 70 of the total floor area sub zoning of temperature control is not appropriate 84 Domestic Building Services Compliance Guide 2010 Edition Table 26 Recommended minimum standards for control of systems within dwellings for community heating continued Community New systems Supplementary information heating 2 0 a Time control of space Where the hot water is produced Time control heating should be provided instantaneously such as with a plate of space by heat exchanger time control is only heating i afull programmer required for space heating zones two or more separate Time control of domestic hot timers providing timing water heating using a cylinder control to each zone or js not considered essential for ili programmable room community heating and could be thermostat s to the a disadvantage with CHP based heating circuit s systems increasing the morning b For dwellings with a total peak demand and hence causing usable floor area greater more use of the boiler than than 150 m time control for necessary the separate space heating zones can be achieved by i mu
26. should be used to calculate the carbon emissions from CHP systems Section 6 Community heating systems 83 Table 25 Recommended minimum standards for design of low carbon heat sources where these are included in community heating systems continued Community Supplementary information heating 4 0 a Heat Pumps New systems Heat pumps can be used as a heat source for community heating systems Selection of operating temperatures to optimise the efficiency of the community heating system and achieve high COPS is important if carbon emissions are to be reduced This may involve the use of underfloor heating and the provision of domestic hot water by other means Where heat pumps are installed in conjunction with heating bollers a reasonable minimum proportion of the annual heat supply from the heat pump would be 45 of the annual space heating demand No minimum standard but see Supplementary Information Solar thermal panels can be used as the heat source for a centralised domestic hot water system 5 0 a Nominimum standard Solar but see Supplementary Information Table 26 Recommended minimum standards for control of systems within dwellings for community heating Community Newsystems Supplementary information heating 1 0 Dwellings with a total In single storey open plan dwellings Zoning usable floor area up to in which the living area is greater 150 m
27. 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Fitting assemblies of steel service pipes polyurethane thermal insulation and outer casing of polyethylene BS EN 488 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Steel valve assembly Tor steel service pipes polyurethane thermal insulation and outer casing of polyethylene BS EN 489 2003 District heating pipes Pre insulated bonded pipe systems for directly buried hot water networks Joint assembly for steel service pipes polyurethane thermal insulation and outer casing of polyethylene 90 Domestic Building Services Compliance Guide 2010 Edition Section 7 Underfloor heating systems 7 1 Scope of guidance This section provides guidance on the specification of underfloor heating systems in new dwellings to meet relevant energy efficiency requirements in building regulations The guidance covers systems that use both hot water pipes and electric heating elements as the underfloor heat source 7 2 Underfloor heating in new dvvellings Underfloor heating in new dvvellings should meet the minimum standards for a system control and safe operating temperatures in Table 29 b floor insulation and system design to minimise distribution losses in Table 30 and inthe case of electric underfloor heating systems in new dwellings construction and contr
28. 4 0 a The electrical input power of Circulation the primary pump in the solar pump system should be less than 50 W power or 2 of peak thermal power of Section 11 Solar water heating 113 Table 37 Recommended minimum standards for indirect solar water heating continued Solar water heating New and replacement systems Supplementary information 5 0 Heat exchanger sizing The heat exchanger between a solar primary and secondary system should be sized so that not less than 0 1 m or equivalent of heat exchanger area is provided per 1 m of solar collector net absorber area A heat exchanger reduces the possibility of clogging and deposition due to dirt scale or similar impurities that could reduce the system performance Heat exchangers and store connections should be sizedand located to promote a low return temperature to the solar collector Solar heat exchangers are often sized larger than those usually used on gas or oll based primary systems ovving to the lovver temperature of transfer 114 Domestic Building Services Compliance Guide 2010 Edition Table 37 Recommended minimum standards for indirect solar water heating continued Solarwater New and replacement systems Supplementary information heating 6 0 a Solar domestic hot water DHW System system controls should be fitted control to i maximise the useful energy gain from the solar c
29. JUDAS e s sn xup ldde ze y Jo 5 5 Sunp u v u ay J e U 3AAS A s u n Bu AjoAu s uawWade day 600 dVS JO qy 10 ey Woy u ye1 aq Ae S D PA Aua UMOU 0u SI aq o up ldde 10 l s S v JO AdualDIfJ3 v Jl p oeyd i Bui q D H S p llonuoo y JO ov piH IPUOSEP S y uey JAMO Slulod Del u 51 d OM uey BSIOM JOU Q pue 5 15 5 M U JOJ p ull p se aq pinous euose s J Jloq y e 1 Jloq bune y en eI B ul u IAA 5 2 abuel p uIJ SeD Z uon s ul se aq p nous si yoo2 abuel Lan D uIquuo2 161 5 100 6une u Jo d lloq y j 41 9608 UEU SS JOU JO 1 56 eINJeU J 9 uey Sea JOU aq p nous Huani 6002 ANAS 40 4002 ANAIS d lloq y SOUI eMp 104 lnp oold JUALUSSASSE uonelJJe su 19 109 bulsu puoo u o APIND 512 ay UI SADUL SLUNDIID euo nd 5x y ul SHul jamMp Bunsix ul q 6002 ANAIS Aq payed se 88 9 dVS UI pasinas u q sey Du DiJJ US B1 u 10 JO 06 UU ss 1ou aq p nous ou n1jJj3 104 pou uu YN GIS 91 I nje sjuawarejday Su pij so0z gt yngGd3Su Joq ul e 01 uoneuuo ul Azeyu ul yddns sui s s uawade day swa shs M N Bune u1 nA 1 5 2 swa
30. Ul uonejn34D bunsix ase si jioq U YM SUN 1972M 104 3i1S uuop ui s s SUI S S Mau sv pue Bune u eds 10 suu s S e 01 Aze u ul yddns sui s s uUaWade day sw sks M N 6une u 78M 9112 suu s s Bune u J AA311132 10 Buiuoissituuuo3 pue 5 5 10 spiepue s p pu uuuio32 u EL qeL Section 4 Electric heating systems 53 jenuew Jasn 5 y Dulpnpul sasn y o uonesa do SU pue uu 1s s v JO uolleue dx JNJ e n p nous Jayjeysul q 2 1 04 02 MOUS 0 p l ldulo aq pinous pio2 1 Buluoissiuuuuo2 e pue Duuo aq p nous Buluoissituuuuo2 SSIUUUUO2 SUl S S M U 10 SY JO suon n nsul sainjoeynueyy e 02 BY HO P S osje 119 UND bune u ay uo JOU a ejOs ULI 1 ul uononp l SONEN JOJEIPEI JJE SUI O O GESIAPE A A jUanbasuod ay pue e2s oU JO DUPU UIPUL JO ADINIAS 10 SJOJEIPLI uone nuun22e ayes Y np i UBYM JULIE 1 PAA 0 SO uoneuIquio2 Jo YND pue Dm JO u uu 2e d i Ja eM JOY day pue S TP U JUANDASUOD pue sso O U O Ja 2M u11e 11 0 apeW aq GOLD 104 p insuoo pinoys suolsiAodd Jar
31. and Bathrooms anticipatory 20 of the floor area should be and separate controls assigned to either direct acting 1 kitchens perimeter heating cables or may have systems such as ceiling or panel direct acting heaters in order to maximise heating cables energy efficiency subject to heat requirements 2 0 Anticipatory controllers should Anticipatory Controls be installed controlling low controllers tariff input charge with external i e weather temperature sensing and floor compensators temperature sensing reduce night Programmable room energy storage thermostats with an override as a function feature should be provided for all of external direct acting zones of the system temperature with air and floor temperature sensing capabilities to be used individually or combined Electric cable direct acting non storage systems with individual room timer or thermostat control in screeded floors 3 0 Construction Direct acting electric underfloor heating cables should be installed within screeds of thickness not exceeding 60 mm All heated floors should be insulated in accordance with Table 30 4 0 Controls Programmable room thermostats with a manual override feature for all heating zones with air or floor temperature sensing capabilities should be used individually or combined 96 Domestic Building Services Compliance Guide 2010 Edition Table 31 Recommended
32. fitting External lighting manual switching and 45 lumens per circuit watt automatic daylight control Micro CHP Heating plant emission rate HPER See Section 13 3 a Heating system circulators Europump Labelling Scheme rating Stand alone glandless heating system AtoG circulators 14 Domestic Building Services Compliance Guide 2010 Edition Section 2 Gas fired space heating and hot water systems 2 1 Scope of guidance This section provides guidance on the specification of gas fired space heating and hot water systems in dwellings to meet relevant energy efficiency requirements in building regulations The guidance applies to systems fuelled by natural gas and liquid petroleum gas LPG and covers e wet central heating systems e range cookers with integral central heating boilers e warm air heating systems fixed independent space heating devices 2 2 Gas fired wet central heating systems Gas fired wet central heating systems for dwellings should meet the minimum standards for a boiler efficiency system circulation hot water storage system preparation and commissioning in Table 1 b boiler interlock zoning and time and temperature control of the heating and hot water circuits in Table 2 pipework insulation in Table 3 5 All gas appliances must be installed by a competent person in accordance with the current issue of the Gas Safety Installation and Use Regulations The installation should f
33. heating 9 0 New build Parts of BS 7593 2006 Code of System a Solar primary circuits should practice for treatment of water preparation be thoroughly cleaned with an in domestic hot water central and water appropriate cleaner and flushed heating systems may assist in treatment through with solar heat transfer flushing and cleaning procedures fluid before filling with the solar heattransfer fluid b Systems should be filled with a heattransfer fluid containing a volatile inhibitor package capable of protecting the system from frost and corrosion at all operating temperatures c Installers should refer to the equipment manufacturer s installation instructions for appropriate treatment products and special requirements for individual appliance models d Where mains water is used to fill the solar primary circuit and the total water hardness exceeds 200 parts per million provisions should be made to reduce the limescale Existing installations a Solar thermal systems should be cleaned vvith an appropriate cleaner formulated to remove build up of degradation films from exhausted heat transfer fluids then flushed through vvith fresh solar heat transfer fluid b Systems should be filled vvith a heat transfer fluid containing avolatile inhibitor package capable of protecting the system from frost and corrosion atall operating temperatures c Installers should refer to the equipment manufacturer s installation i
34. hotvvater storage systems in Table 15 d pipework insulation in Table 16 52 Domestic Building Services Compliance Guide 2010 Edition SUV S S Bune u 1 5 A JOY 2I s uuop Ul 1 EM JO u ul e 1J JO 2 900 6682 58 S JUBA JAJEM pippue s ueA J 1 U GEET JAJEM JO SIBINPAs Je2S 2040 1201 Dulsop azeydsoydfjod JAolIqiuu Je3s uul PUL UOlSOLO PAUIQUIOD SIOJIGIYU 28 ED LUAYD JO SN OU AQ p lJO uo2 aq Up je s ul 7 9002 666 98 Ul U A b suu 1s s UOISSILULUOD pue o moy UO SDUePING y MOJO 0 8g pom UOISIAO4d ajqeuoseay abpn s pue ajeds JO UOIEWO y pue 10150 02 OJ UOD 0 y 0 pappe aq p nous uonpinuulo ju ul e l1 Ja EM 214 2 P luayshs ay JO Bullli peui Duungd q lloq Mau e Huljje su yjyu une 1n q 4 EAA pue ya pying p usni pue iubnolou ui s s qunullului e se p nous SIOJIGIYU Sul 8 S Mau 10 SV aq p nous sul s s Huljeay jeujuaD e oz p sn aq PINOYS AJLA ssedAq neuuo ne ue u u ssedAq e JO UOUEIEISUL S APE suol oniulsui UO E NDIID sJaunpeynuew Jajiog v q p duund Ant o 2 aq p nous p dulnd 14 5 Un 54 5 5 ilni aey p nous sBulj j AAp Mau
35. m above or to some lesser standard where practical constraints dictate 28mm 10 07 Wim 35mm 11 08 W m 42mm 12 19 W m 54mm 14 12 W m n assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations 48 Domestic Building Services Compliance Guide 2010 Edition 3 3 Oil fired range cookers with integral central heating bollers This section provides guidance on the specification of oil fired range cookers with integral central heating boilers for space heating and hot water in dwellings Note that the guidance applies only to twin burner cooker boilers which should not be confused with the type of range cooker described as a single burner dry heat range cooker The latter is intended only to provide a cooking function is not included in SAP 2009 calculations and does not come within the scope of building regulations energy efficiency requirements Oil fired range cookers with an integral central heating boiler which are provided as new systems and as replacement systems should meet the following conditions a the appliance should have two independently controlled burners on
36. micro CHP system should be calculated at the PSR determined inc above using the methodology set out in DECC 5 Annual Performance Method and the performance data for the micro CHP package establied by testing according to BSI PAS 677 Supplementary information British Standards BS EN 15316 4 4 2007 Heating systems in buildings method for calculation of system energy requirements and system efficiencies Heat generation systems building integrated cogeneration systems Other documents Appendix N of SAP 2009 Method to evaluate the annual energy performance of micro cogeneration heating systems in dwellings BSRIA BG 2 2007 CHP for existing buildings Guidance on design and installation 10 Energy Saving Trust CE54 Whole house boiler sizing method for houses and flats This is an interactive calculator available from the Energy Saving Trust at www energysavingtrust org uk housingbuildings publications The design heat loss in kW is the basic design heat loss in box U from the 2010 edition 11 Method to evaluate the annual energy performance of micro cogeneration heating systems in dwellings APM SAP 2009 revision DECC Available from www bre co uk sap2009 12 BSI PAS 67 2008 Laboratory tests to determine the heating and electrical performance of heat led micro cogeneration packages primarily intended for heating dwellings Section 14 Heating system circulators 127 Section 14 Heating s
37. minimum standards for construction and control of electric underfloor heating systems continued Underfloor heating Nevv systems Supplementary information Electric cable 5 0 Direct acting electric underfloor direct acting Construction heating cables installed below systems with floor boards in voids between individual floor joists should be insulated in room timer or accordance with Table 30 thermostat 6 0 Programmable room 7 ntrol in Controls thermostats with a manual timber floors override feature should be provided to control space temperature and limit floor void temperature for safety and comfort in each area Under tile 7 0 Direct acting electric underfloor electricfloor Construction heating cables should be heating provided with a pre fabricated systems mattress or equivalent IEC 60800 approved heating cable product of thickness less than 4 mm encapsulated in tile bedding adhesive or mortar below a ceramic or other equivalent floor finish on a thermally resistive insulation layer as defined in Table 30 1 0 b 8 0 Programmable room Controls thermostats with a manual override feature should be provided to control space temperature and limit floor temperature for safety and comfort in each area Section 8 Mechanical ventilation systems 97 Section 8 Mechanical ventilation systems 8 1 Scope of guidance This section provides guidance on the specification of mechan
38. no longer shows A to G efficiency bands for boilers Section 1 Introduction 9 Examples 1 Anoldoil fired boiler with a seasonal efficiency of 72 per cent is to be replaced by a dualsolid fuel boiler The new dual solid fuel boiler should have a a seasonal efficiency not less than 65 per cent from Table 18 in this guide and b acarbon equivalent efficiency not less than 70 per cent A dual solid fuel boiler with a seasonal efficiency of 65 per cent will meet condition b as its carbon equlvalent efficiency is 65 x 0 274 0 206 86 5 where 0 274 and 0 206 kgCO kWh are the emission factors for oil and dual solid fuels respectively 2 An LPG fired boiler of 83 per cent efficiency is to be replaced with an oil boiler The new oil boiler should have a aseasonal efficiency not less than 90 per cent from Table 9 and b acarbon equivalent efficiency not less than 81 per cent To meet condition b the seasonal efficiency of the proposed new oil boiler should therefore be at least 81 0 245 0 274 90 59 where 0 245 and 0 274 kgCO kWh are the emission factors of LPG and oil respectively 1 8 Energy efficiency standards for compliance with building regulations summary table To assist compliance with the relevant energy efficiency requirements in building regulations this guide sets out recommended minimum energy efficiency standards for space heating domestic hot water cooling ventilation and lig
39. ons uuop JOY si pul D peusipul l ddo 2002 9981 Sg sp4epuv s 518 nDo 4 25 0U 7VUVVVA WO aa 104 SI uonpolp ds abeso s jeuoy WMH U 9002 6821 N4 S8 UIW d2UepIoD e UI p s ag p nous SNSHOPLILYI JO oy SI A EP UMA 14010 2 0 82 p x JOU p nous sso Buipue s y J pul O BY JO BLUNI OA y S A DI YM EDM zzA1S0 0 Z 0 x G O p gt x 1ou p nous xoqe p pued q e Ul S SS A DE O18S 1OUIS 40 sso Jeay Buipue s ul a VM 40 Duno 1972M 1 149 pueog LEI y se uons poq 1591 ue Aq jas se piepue1s yuajeainba ue JO 9007 Z68Z 1 NI Sg uum A duuo2 p nous spnpoid 15 5 15 Jop JOY Doan D 5 9 JOJ 2 1 05 BDUCULIOLIA 10055 JOH AY JO UO E NSU u11 uu pinoys 54 5 5 15 4 D 1861 861 S9 UMA Alduuo pinous spun uonpulqulo DE 0 S JayeM yoy s ddo q L Hed 2002 995 SgJO DUPU X e y pue SSO 1624 y spun uonepulqulo pue 5 1 siu uu uinb J DBueupx 1 e u pue sso 5 u u 1 ddo2 o Jaddod jUaWAde da 0 3e v y YM duuo2 p nous sapul 1 JeAA1oH
40. prCEN TS 12977 2 2005 Thermal solar systems and components Custom built systems Test methods TS 12977 1 2001 Thermal solar systems and components Custom built systems General requirements BS EN ISO 9488 2000 Solar energy Vocabulary BS EN 12976 2 2006 Thermal solar systems and components Factory made systems Test methods BS EN 12976 1 2006 Thermal solar systems and components Factory made systems General requirements BS EN 12975 2 2006 Thermal solar systems and components Solar collectors Test methods BS EN 12975 1 2006 Thermal solar systems and components Solar collectors General requirements ISO 9553 1997 Solar energy Methods of testing preformed rubber seals and sealing compounds used in collectors BS 3734 1 1997 Rubber Tolerances for products Part 1 Dimensional tolerances BS 903 0 2003 Physical testing of rubber Part 0 General BS 6920 2000 Suitability of non metallic products for use in contact with water intended for human consumption with regard to their effect on the quality of water ISO TR 10217 1989 Solar energy water heating systems guide to material selection with regard to internal corrosion BS 8000 Workmanship on building sites BS EN 12897 2006 Water supply Specification for indirectly heated unvented closed storage water heaters BS 7671 2008 Requirements for electrical installations BS 1566
41. primary flovvvvhen there is no domestic hot water draw off A small intermittent flow is an advantage to maintain the temperature vvithin the heat exchanger so as to provide more rapid heat up 5 0 The maximum design Limitation flovv rate into the dvvelling of maximum heating system should be flovv rate limited by suitable control into building and balancing valves to or dvvelling maintain the overall balance in the netvvork and to avoid excessive pumping energy 86 Domestic Building Services Compliance Guide 2010 Edition Table 27 Recommended minimum standards for domestic hot water production storage and water treatment heat meters and commissioning for community heating and storage control principles and be designed to maintain low return temperatures in the primary community heating circuit Community New systems Supplementary information heating 1 0 a The hot water system Hot water can be produced in four DHW should be controlled ways in community heating systems production using variable volume e in individual dwellings using indirect storage cylinders e in individual dwellings using instantaneous plate heat exchangers centrally using storage calorifiers with either an indirect coil or an external plate heat exchanger centrally using an instantaneous plate heat exchanger In selecting the system consideration should be given to the impact on return temp
42. s SUH S S Mau 1015V e pue sul s s Buije u eds e 02 SOUNJEJOAWA UINJ I MOJ YIIYM s nbiuu2 5 2 pue Bune u se u2ns Sale e u aunjeiadwa MOT uoneiodo si Jloq Bune y jenu e ba ul bulsu puoo sluumKxeuui UU s YUM SI yOO UONIAS l uey SS Iqev l id sainjesadwe se aq pinous si yoo Bue1 UINJad uu s s 1euuud moj plAoJd UI p ulquuoD2 ale zey Si lloq p nunuo2 O se OS paubisap ag pinous suu s s 6une u 104 Ou niJJ u jloq ul e u NIHI p N ase Solo Bulsuapuod I YM si ioq 42009 abuey 01 uoneuuo ul Aze u ul yddns sui s s uawade day Sul 3SAS M N 6une u sus s4s Bune u le nu 1 Buluolssiululo pue uonesedaid 5 5 5 Wia SAs uN 10 5 6 4 1 38 Domestic Building Services Compliance Guide 2010 Edition s sod nd ns ulop 401 S IUN UO JEUIQUIOD a6es0 s 191M JOY 1 ddoD 96 SY 5 abes0 s D SODD J 23 JIpul JOJ 011221 000 iddns IeM 682 NIS SPOYJOUI so pue s u uu uImb vw Seu J ddo2 u do s sod nd
43. sAs Bune u 9M 5 10 1 01551011102 pue 5 5 apelos 1 1 eAA1ou Wia SAs uN 10 5 PAPUBLUWWODAY qeL 16 Domestic Building Services Compliance Guide 2010 Edition uoge p duund An 0 p H AUOD aq p nous uolle n2JiD u 6Bu did uinuululuu UO suon n nsul suj m ejnueul y pue p piAoid aq pinouS A PA ssed q npuuone ue ssed q e JO uol je je sui S APE SUO INAYSUI sJaunjpejnuew J lOq y 1 0 uole n21D AyiAes6 Iluas ullAA 54 5 5 nsix p duund Ajjnj p nous SYND ae 5 00 U UAA 0 ewid 1972m JOY Dl3S uuOD ui s s SU1 S S Mau 1015V e pue sul s s bune uq eds e 02 SOUNJEJOAWA LU MOJ YIIYM s nbiuu2 JO s jdwex uonesu duuo2 19412 M pue Bune u 1oojji pun Se u2ns Sale e u MOT uoneiodo bulsu puoo aSIWUIXELU YIIYM bap GG uey ss sainjeiodwe UI uu s s veuuud moj aplAosd p nunuo2 O se OS paubisap aq pjnoys sul s s p h ase si Jloq Bulsuapuod 01 uoneuuo ul Azeyu ul yddns sui s s uUaWade day sul S4S M N Bunme u z m 1 5 p nunuo2 suia sAs Bune u pailj seb 10 Buiuoissituuio2 pue uonesedaid uu 1s s
44. should temperatures be in the range 30 C to 40 C for and new buildings and 30 C to 55 C efficiency for existing systems Radiators a High efficiency radiators with high water volume should be utilised b Supply water temperature to the radiators should be in the range 40 C to 55 C Space heating may be sized to meet all or part of the space heating load Secondary heating will be required if the heat pump is sized to meet part of the space heating load Fan coil units a Supply water temperature to the fan coil units should be in the range 35 C to 45 C Fan coil units may be utilised for heating only or for winter heating and summer cooling Section 9 Heat pump systems 103 Table 34 Recommended minimum standards for warm water and hot water heat pumps ground to water water to water and air to water systems continued Warm and hot water Supplementary heatpumps Newand replacement systems information 2 0 a The water distribution system Design Installation should be arranged for reverse A pressurised water and return operation or arranged distribution system commiss with a low loss manifold system with expansion vessel is ioning to maximise efficiency and recommended ease commissioning and future maintenance b Pipework not contributing to the space heating should be insulated to prevent heat loss following the guidance in the TIMSA guide If summer cool
45. should be insulated wherever freezing Guidance is available in they pass outside the heated living space or BS 5422 2009 Method for specifying through voids which communicate with and are thermal insulating materials for ventilated from unheated spaces pipes tanks vessels ductwork and il Primary circulation pipes for domestic hot water equipment operating within the circuits should be insulated throughout their temperature range 40 C to 700 C length subject only to practical constraints e BRE Report No 262 Thermal imposed by the need to penetrate joists and insulation avoiding risks 2002 other structural elements Edition ili All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept hot by that circulation should be insulated Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels Pipe outside Maximum diameter heat loss Replacement systems 8 mm 7 06 W m a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that 12mm 7 35 Wim are exposed as part of the work or are otherwise EE Z 89 W M accessible should be insulated as recommended 22mm 9 12 W
46. sn ase Jey si JlOq S IDU T LH 1978M JOY oU Iguuuuns pue Ja UIM aze1edeas y m 1941960 104 SAIG uuo2ynqp swwA 15 SEQ EQ u n J 19 109 1 4002 ANJAIS WOH 1UoJ JJID 5 6002 ANIAIS 6002 6002475 021 Woy Uae aq PINOYS 5 01551 QD ql AOQP q pue p ul BY Huryew N S MaU dU Ul p sn zey o padeda Bulag aas Y l p sn jan au JO 10126 UOISSILUA QD a JO 94 Aq p ldninui aq p nous 5 Mau dU JO Aualdijjo Y ni JUDAS esasn aduel dde ze y Jo 5 5 Hulzeay Mau ay J e U 3AAS Jo n Bu AjoAu s uawWare day 6002 dVS JO qy 10 ey Woy q Ae S D PA Aua UMOU 104 SI o up ldde 10 uu 1s s y JO v p 2e d i Bui q 5 1 2 y JO ov piH Ieuose s y UPU1 JAMO Slulod abe Uadiad OM uey aSIOM JOU q pue suu s s Mau JOJ p ulJ p Se aq p nous OU DLHH jeuose s J loq ay e sBulJJ AAD 10 ainpardosd u uuss sse uoneJje su Joo y o aPIND 512 ay ul aduepinb ay Huimojjo Aq payesjsuowap aq ued Aualdiya d lloq 104 slu uu uinb l Y YPM xup lduuo sbulljamp Sunsix l q 0698 Ue Seat JOU aq p nous ou piH 6002 8035 40 G00Z ANAS s lloq ay e si jioq uoneulqulo 5 10 ainpardosd
47. such as this guide which provides additional information to help you follow that guidance there is a legal presumption that you have complied with building regulations However in every case it is for the building control body to decide whether work complies with building regulations So you should always check with the building control body before you start work what they consider it is necessary for you to do to comply with building regulations Section 1 Introduction 7 1 5 How to use this guide The guide comprises four self contained fuel based sections and nine technology specific sections Fuel based sections Section 2 Gas fired primary and secondary space heating and hot water Section 3 Oil fired primary and secondary space heating and hot water Section 4 Electric primary and secondary space heating and hot water Section 5 Solid fuel primary and secondary space heating and hot water e Technology specific sections Section 6 Community heating Section 7 Underfloor heating Section 8 Mechanical ventilation Section 9 Heat pumps Section 10 Comfort cooling Section 11 Solar water heating Section 12 Lighting Section 13 Micro combined heat and power Section 14 Heating system circulators For any particular application reference may need to be made to more than one section Supplementary information that may help with interpreting the minimum energy efficiency provisions needed to comply with the Building Regula
48. such as with thermal stores a zone valve is emergency not appropriate a second pump could be replacement or substituted for the zone valve where the cylinder or installation is of a type that precludes the fitting of wired controls either a wireless or thermomechanical hot water cylinder thermostat would be acceptable Supplementary information More details on control systems can be found in manufacturers literature and on the The Association of Controls Manufacturers TACMA website at www heatingcontrols org uk Controls may be provided by any boiler management control system that meets the specified zoning timing and temperature and boiler interlock control requirements When an individual system component such as the boiler or a room thermostat is being replaced it is not necessary to upgrade the whole system However while not essential for compliance with building regulations in the case of a boiler replacement because the system has to be drained down it would be good practice to install thermostatic radiator valves or equivalent on all radiators other than in the room with the main thermostat provided the radiators are suitable and pipework does not need to be altered Section 2 Gas fired space heating and hot water systems 25 Table 3 Recommended minimum standards foriinsulation of pipework in gas fired wet central heating systems Nevv systems Supplementary information a
49. uk approveddocuments gt Part L gt Associated documents c if thermal energy is purchased from an existing district or community heating system an assessment of the carbon intensity of the scheme should be carried out Emission factors should be determined based on the particular details of the scheme but should take account of the annual average performance of the whole system that is of the distribution circuits and all the heat generating plant including any CHP and any waste heat recovery or heat dumping The calculation of the Dwelling CO Emission Rate should be carried out by a suitably qualified person who should explain how the emission factors were derived d controls should meet the minimum standards in Table 26 e pipework insulation should meet the minimum standards in Table 28 80 Domestic Building Services Compliance Guide 2010 Edition Table 24 Recommended minimum standards for the design of new community heating systems to maximise efficiency of heat generation and minimise energy use by pumps Community New systems Supplementary information heating 1 0 Boiler only community When calculating the carbon emission Boilers heating systems for nevv rate the type and quantity of fuel dvvellings may be used used and also the electricity needed to provided that the Target operate the central plant and pumps carbon dioxide Emission should be taken into account Rate TER for the dwelling For s
50. 0mm 7 23 Wim is replaced in an existing system any pipes that 12mm 7 35 Wim are exposed as part of the work or are otherwise J mami Z 89 W m accessible should be insulated as recommended 22mm 9 12 W m above or to some lesser standard where practical constraints dictate 28mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54mm 14 12 Wim assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations 60 Domestic Building Services Compliance Guide 2010 Edition 4 3 Electric heating systems other than electric boilers for central heating This section provides guidance on the following types of fixed electric heating systems electric warm air systems electric panel heaters electric storage systems including integrated storage direct systems Portable plug in appliances are not covered by this guide Fixed electric heating systems other than electric boilers provided as new systems and replacement systems should meet the minimum standards for time and temperature control in Table 17 Section 4 Electric heating systems 61 Table 17 Recommended minimum standards for contro
51. 9 Condensing bollers 90 88 Non condensing boilers where permitted 86 86 Range cooker boilers 80 80 Electric heating systems Efficiency Boilers serving central heating systems N A Warm air systems N A Panel heaters N A Storage systems including integrated storage N A direct systems 2 All values are minimum values and apply to new and existing buildings except where stated 3 The boiler efficiency should meet either the SEDBUK 2005 or SEDBUK 2009 standard H the SEDBUK efficiency given in boiler literature is not dated it should be assumed to be the SEDBUK 2005 value 4 Efficiency is heat output divided by calorific value of fuel The net calorific value of a fuel excludes the latent heat of water vapour in the exhaust and so is lower than the gross calorific value Efficiency test results and European standards normally use net calorific values SAP 2009 which uses gross values gives factors in Table E4 for converting net efficiency to gross efficiency e g 0 901 for natural gas 0 921 for LPG 0 937 for oil Section 1 Introduction 11 Summary of recommended minimum energy efficiency standards for building services continued Building service Standard Solid fuel heating systems Efficiency gross Feed B1 Simple open fire Inset 37 Batch B2 Open fire freestanding convector 47 Batch B3 Open fire inset convector 4596 mineral fuel
52. ER greater than 2 5 Fixed air conditioners should have an eneroy efficiency classification equal to or better than Class C in Schedule 3 of the labelling scheme adopted under The Eneroy Information Household Air Conditioners No 2 Regulations SI 2005 1726 Comfort cooling New and replacement systems Supplementary information 1 0 a Air cooled air conditioners Installation should be carried out Efficiency working in cooling mode should by an installer approved by the manufacturer or supplier The installer should be a competent refrigeration and air conditioning engineer with a valid refrigerant handling certificate Exposed refrigeration pipework should be insulated and enclosed in protective trunking to limit accidental damage www eurovent certification com Supplementary information British Standards BS EN 1451 1 2 Air conditioners liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Test conditions BS EN 1451 1 4 Air conditioners liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Requirements Section 11 Solar water heating 111 Section 11 Solar water heating 11 1 Scope of guidance This section provides guidance on the specification of solar water heating for dwellings to meet relevant energy efficiency requirements in building regulations The guidance in this sec
53. Environment Agency Heat may be supplied to the dwelling either by a water based heating system water to water heat pump or by an air distribution system water to air heat pump Air source systems ASHP Air to water Air to air Air source heat pumps extract heat directly from the ambient air Heat is supplied to the dwelling either by a water based heating system air to water heat pump or by an air distribution system air to air heat pump Air to air heat pumps may be single package or split systems All heat pump systems are at their most efficient when the source temperature Is as high as possible the heat distribution temperature is as low as possible and pressure losses in air and water systems are kept to a minimum If installed in a new dwelling heat pumps should use refrigerants complying with the provisions of EU Directive 2037 2000 Heat pumps should be CE marked in accordance with applicable EU Directives e g the machinery safety low voltage pressure equipment and electromagnetic compatibility directives If summer cooling is provided by the heat pump it is recommended that condensate drainage from the indoor units Is provided Section 9 Heat pump systems 101 9 2 Keyterms Coefficient of performance CoP is a measure of the efficiency of heat pumps Heating CoP heat output power input CoP CoP x 100 isthe heat generator efficiency Seasonal performance factor SPF is the operating pe
54. LULWODAY 6 lqEL Section 3 Oil fired space heating and hot water systems 43 lloq e Ul A SE Upns jsno uelue sui p onpoldi si 1842M 104 aU JOU si voz Joy ayeuedas v q s uoz s uoz Hulyeay eds o uonippe Bune u i 1eAA SUH S S Mau 10 sv e Ul UOZ Ja eM JOY 5 e aAeY pinous sBuljj AAp jy e 02 leudoudde ou si fonyuo Jo Huluoz qns eale 1 18101 v JO 0 ULY 51 ease BulAl y YDIYM ul S UH AAP ue d u do AvJO s a Huls J04 D sjo 1uo2 pue Duuun ayesedas bulAeu u2e s uoz Huze y DEdS OM 1SP l 16 Y IM aq p nous z l 0S4 uey ease 10011 lqesn e o e L sBui l AAq q eade Du v 0 paubisse s U3IUAA JO uo ojluo2 y pu d pul Ul s uoz s uoz Dunp v eds OM sea 1 Olu aq p nous Bune u deds SUH S S MAU JOSY e Lu O dn 100 ajqesn 270 e Uh S UH AMQ e 02 gt poli lul piAoid1ou s op uo e SAYL JOJLIPLIIIJEJSOWAU gef q HO p u31IANS aie dund pue J loq ay 1942M you 10 Bul e u adeds l ull 104 pueuu p OU 51 3194 U YM 180 OS Dall 5 YDIYM l 3D2O J 1ul y oH lul l llog SUH 3S S Mau 10 SV e O4JUOD s lloq e APU p nous suu 1s s p seq l llog e 01 sul 3
55. M N Bune y z m 1 5 suia sAs Bune u Lann pailj seb 10 1 1551 2 pue uonesedaid uu 1s s 5 1 1eAA1ou Wia SAs u r LH 10 5 p pu uuuuo232 t lqEL 20 Domestic Building Services Compliance Guide 2010 Edition D D1O2 1 aq ULI SIO IQIUUI pue SI UP DD Ul 9 JO sjlejap duuex 104 suledes pue YIM SISSP O Ul UOhP IE3SUI v NOG uol euuuoJul DI S1a e SUI AJAY o UONE EISUI SIIQUIAWW JOINJDE NUW d lloq seD DIHH Ie l p pnpul aq 1siD D U BuluolssiuuuuoD yJeWYIUEg V J sn y 10 Juabe pajurodde ue BullJJ AAD Du nsix u JOM JO 5 2 y Ul Japjoyasnoy ay JO ay o papiAosd ag pynoys 1S D D U yseWYyIUag ay Suonp nb l uyu ul juawdinba BY JO uoneu do U DLH MOYS s ns y pue aPeW u q APU SyD U OU JE JEY D402 1 Up dau 150 OS UH S S v BuluoIssiuuuuo2 suosi d y Ag uon yduuo 104 xup dde y YUM 1S D D U e AaPIAOIA si piou 2 2 yuUeuuuDu g ZJuo Dejsnes no pated u q sey BuluoIssiuuuuo2 enue 5 5 y bulpnpul Jeep y o uollejJ do SU pue 15 5 y JO uolleue dx IIn e AAI p nous Jayjeysul aUL q
56. M YLM Dal q ULI suu s s f n pilos qnd no ulnuululu JE o s lloq v SNVI iaa UIN l YDIYM dund y O YIM JIAA JEJSOWJIY WOO BY SUIA SAS pijOS JSOW uj uonduunsuo o ulnullulul e O q up nq no adue dde ay nq ndino 1894 BY HO YOUIMS O qissod ou sI uonlubi oneudo np nou A JO S 10 1 JNOYJIM saduedde JO p J u2 eq 0 115 uuos uj AG p pu uuuuo2 1 JI Da aq uo p nous v 104 pueuu p OU sI l q UBYM D nel do woy Ul S S v juand o Ju uu Buepue DUL e Ag l llog Bune u l n piyos 104 SjO1 U0 uo Aseyu ul yddns SUH S S M U JO p ull p SI A BY O pinous 5 1402 os op o DIWOUODa pue 3001499101 e O p nous e soway s pull y Jainpepnuew y Aq p llluugd A PA UOZ Y 104 p n1l sqns lqeon eld si 11 se sy q pasn Ja eM aq pjnod duind puodas e 1 PAN q JOU p nous S 4a O4 UOD 1972M JOY IUDa a UON q you3 ns uuop azeudosdde 101 51 uoz de AISS X 1 O 1 EA 10U 15 JO JO 3 2 p S 10 S Ui Sp
57. OISSILULUOD pue o moy uo adUePIN y NOJ OJ O q UOISIAOIC qeuose y bpnis pue 25 JO Y PUL 40150 2 2 O INDIO au o pappe aq pynoys uone nuuoj Ju ule 1 1 A D U MOS AUDE SI I Y M 1O IqIuu 160 1 2 Ja eM PUY e Wa sAs au JO Du jeu Duund q pue uoneuied id JO 221042 v 2u njJul AL SIY pue UOISOJJOD J jioq Mau e Hullje su 1no p usnil pue ui s s lenu od p se Dul ue sey 1 M OS JY S OU 69 Sg p ue iubnolou aq p nous suu 1s s Hulyeay ienu e Op 0 1402 1ju eAIb ue 0 JO sn1e s UU 19 EWA Sg se yons pnpod y uo Buljjaqe ed pinoys 5 1342M JOY 1 ddo2 y MA UI aDUeWWOPead s bup x A SS A JO d 1 AI Aep U Ul SSO e y Huipueys Til s ni ul Dede eululou SS A JO d 1 Uoneuuolul BuliAAo o v UUM qe e AU P DOUS S SS A abeJojs JayeM JOY V D 6une u uoneuuoyul Aveyuawajddns swa sAs 1u ui 32e d 1 pue M N l n pilos p nunuo Bune u le nu f n pijos 10 Buiuoissiuutuo3 pue uoneued 1d uu 1s s 5 1 1eAA1ou 5 Ian UOL 5 5 104 5 papuawwo y 07 lqEL Section 5 S
58. OV sui s s1u uu 2e d tui swia sAs M N 6une u M suu 1s s Bunesu eilu 3 JAM PaJlJ 10 on uo2 10 5 uinuuiuluu 01 qeL Section 3 Oil fired space heating and hot water systems 45 AIPA uoz BY JO 1 115015 aq pinoo dund puo2 s e eludoidde 1014 SI A PA uOZ E s JO S ELUJAU Y IM SE UNS S 2ue suun24lD WOS Ul OS V p sn OU pinous sl llonuo2 104 DUJ UON d nol o Sau 5 11 Jo jauueyd ynuw l5uls qe1d 22e aq p noAA 1e1souuj u Jo si uuuue1Boid uoz Buljyeay di nu 1 JOY 21 10 SS T HAN P Aq p A lu2e aq UeD siy S OJ UOD d ul sionuo2 JO BUNYI ay s pnp ld zey d pue Duuun ayesedas U E HD 1 1eAA1Ou e JO S uollje je su JO v JO 1lu uJ 2e d l UO ULY APIA O qeuose 1 aq P NOM y Ja eM Se Une S9DUL SLUNDIID Jeuolld 2x l q Lu 0G uey eae 1001 1510 e YIM SBul jaMp ul q 104215 suonej e sui uoneynol uo JALEM JOY 5 JO Y O1JUOD O yo onuo pue suonpileqsul p dulnd AjjnJ ile uo si pull pod 14 10
59. PINOYS JasNJIE NUEW l lloq y Seale y q payinba U pue uo 4 5A YOS Uf UND AIEWULA 19 10 Jad sued 002 Sp x ss upieu v o osje nq sei 1 em Bupyulip 810 SUIELU BY D O AJUO JOU 1 5 A p u yosun p J Sl pouu O lQESIADE SI I pauayos Aene d lloq enpiAIpui 104 slu uu iinb l yu une n SI 10 IQIYUI UO SOL O Jeldads pue s 2npoid zu w e 1 4 EAA pue JO 2IOU2 y Aw siv pue eludoidde 104 suolnpnulsul UOISOUOD JO p sp JDul ue 1501 SJaIN DepNuUeW J jioq ui s s SEY JAJEM YOS 15U S OU c6S SY y O 1 J 1 OS P pinous 5 154 2 02 A1ejyu uu ddns sui s s uaWwade day Sul SAS M N 798M 212913 5 5 5 Bune u 10 Buluoissiuuuio3 pue 5 5 10 5 6 4 54 Domestic Building Services Compliance Guide 2010 Edition leudoldde ou si fonyuo Jo Huluoz qns 100 18101 BY JO 0 ULY s ease BulAl y YDIYM ul 5 ue d u do AvJO s a Huls 404 j sjo 1uo2 pue Duuun ayesedas bulAeu u2e s uoz Huze y DE
60. Pumping energy can be minimised by Minimising heating systems the optimising operating temperatures energy use design temperature and pipe sizes to reduce installed by pumps difference for the pump power community heating primary circuit should be greater than 20 C Variable volume control systems should be used to reduce the volume of water and the pressure difference required from the pumps under part load To take full advantage of variable volume systems variable soeed pumps should be installed and controlled to deliver the required pressure difference to suit the load Further guidance is provided in BSRIA Application Guide AG 16 2002 Variable flow water systems design installation and commissioning guidance Table 25 Recommended minimum standards for design of low carbon heat sources where these are included in community heating systems Community New systems Supplementary information heating 1 0 No minimum standard Community heating systems can be Low carbon but see Supplementary designed to use low carbon heat heat Information sources to meet all or part of the heat sources demand which may enable some relaxation of the U values that would otherwise be required 82 Domestic Building Services Compliance Guide 2010 Edition Table 25 Recommended minimum standards for design of lovv carbon heat sources where these are included in community heating syste
61. Sp YINS s OJ1uoO2 enpiAIDUI pue S9UOZ IIE Ul S15 SOUL U JO S e soway WOO 7 2 095 0 3 02 Dulsn p nous x SUH S S M U 10 SY y UlUlAA S UOZ JO O4JUOD e OV swa sAs zu wejd y swia sAs M N 6une u 1J AA314 29 3 p nunuo 2 sus s s Bune u 21 U8 Jo ojluo2 10 5 PL lqEL 56 Domestic Building Services Compliance Guide 2010 Edition si pul S p le u ileon f 19470 SE Sp sllun uolleuiquuo2 p 1e u e211 2 o s ijdde siy sat l uun oA Japul AD euluuou y SI eP UMA ez LS0 OFZ 0 X SI l D ANIA y p 2x JOU s op sso 1e u u11eu1 U ns p le nsui aq p nous spun uoneulqulo payeay suu s s Mau D Q A JO4 D si pul S p le u 2 19470 Se Se sun uol jgeuiquio5 pa eay Ajjed14Da a o s lidde silu samt Ul uinjoA J pui o SI P U DE10 S p so 2 p u Aun p ze y JEUILUOU ou SI A BJ UM AEP YAMAY ech La 2 0 no uypul 104 uoneryinads Addns sem Z68Z1 58 eu UNS p teinsul aq p nous spun UO eUIqUIOD p rp u IIp L l sur s s
62. U JIYM 5 5 jOU A y apeibdn o Hess o u JOU SI I Hulq si 1e souul u P JO Ja IOg BY Se YINS u uoduuo2 5 5 UC UBYM x O1JUOD J20J1 UI pue pue bulun Duluoz p ljip9 ds y s uu 72y uu s s O1 UOO 1u uu Deueuu 19 109 Aue A0 aq ACW S O1 U0D in 54o sionuoobunp v WWM ye ayisqam VINDVL SI INPEJNULN SJO1JUOD JO UOIJEIOSSY BY BY UO pue in l yil SIAINJDC NUCW UI PUNOJ ag UD SLA SAS O4JUOD UO SJIe p uoneuuo ul Azeyu ul yddns sul 3s4s u ul eld q swia sAs M N 6une u M p 11J JIO p nul uo3 swiaysAs Bune u e1 U9 JBM JO 01 UOD JO 5 OL lqEL Section 3 Oil firedspace heating and hot water systems 47 Table 11 Recommended minimum standards for insulation of pipevvork in oil fired wet central heating systems Nevv systems Supplementary information a Pipes should be insulated to comply vvith the Insulation of pipework in unheated maximum permissible heat loss indicated in the areas Supplementary Information column and labelled Extra provision may need to be made to accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot pipework in unheated areas against water circuits
63. UE WOJ SI JAPUI AD p u aA e JI 110 swa sAs Mau sv e apos 10 Joo e 02 sui s s yu uu 2ed tui swia shs M N sus s4s Bune u le nu JOM 1 104 Buluolssiululo pue uonesedaid uu 1s s apelos 1 1 eAA1ou uu ls s 10 5 PAPUBLULWODAY 6 lqEL Section 3 Oil fired space heating and hot water systems 39 GEPfOS JO UORD S suon s Bas sinduil1e u d ulo JO slu uu unba Hulyjaqe 104 se s lpoq jo sobo pue 68Z1 58 99S1 Sg D al puepuels Jupe UNA 2 pnpoid o xu l l l A Ma ul J9Bueu5x 1e u AN Aep U u sso 1e u Hulpueys Til s ni Ul Ayaeded euluuou 15 IPULl U JO PUN uoneuiquuo2 p u Aun D U A SS A d 1 1 a6e10 s ayy YIM jaqe e Aue PINOYS SI SS A I PA 104 V 4 OE uoneuuo ul Azeyu ul yddns sui s s uaWade day swia shs M N 6une u M p 41 J O p nunuo sus s4s Bune u le nu JOM p utJ Jio 104 Buluolssiululo pue uonesedaid uu 1s s abeJ0 s 1 1eAA1ou
64. UV 1S S Beiols Ja eM 104 JO 1 10q v o HHD S aq IM Suol onulsul s u suolpnulsuisu npejnueu v UMAN adUePsOIIE Ul D uOISSILILUUOD aq p nous1u uudinb y Sjo1 U02 pue sduind yJoMedid se yons u wud nb p ze nosse MOYS O p sn aq ULI sIJ 2 UD y m l v bo ul s s Beiols Buluo BuluolIssiuuuuoD 1 2 91 Ja 2M JOY JO J iOQ e JO SSILUWWOD ul S S 2 8 OY SUl S S Mau 10 SV e uoljie1su u JO uol duuo3uO e 015 sui s s uUaWade day 611915 5 M N Bune uj nA 1 5 p nunuo2 suia sAs Bune u pailj seb 10 Buiuoissituuio2 pue uonesedaid uu 1s s 5 1 1 eAA1ou Wia SAs 10 SPAePUL S lqEL Section 2 Gas fired space heating and hot water systems 21 1YbuAdOd si1u luo2 v pue il uno U snpu 19354 JOH pue v q JAEN An ylo ue doun3 ese 9 S y euuu5u g 1no e pue BuIpioAA yooq paroidde ay pue p nunuo2 x eUIYIUEg AY sn o lqibiy Duuo aq Wi SOUS YCWUYIUAg e DIOU SSILUWWOD oym s lueduuo2 Buunpejnuewl AU Oe uoneuuo ul A1ejyu uu ddns sui s s uUaWwade day swa shs Bune y z m 5 p nunuo2 suia
65. Z 0 XSL D p 2x JOU p nous aAoge D pue 2 q e UI SJ SS A 5 10y P JO sso 1e u Hulpueys y 1 b nunuo2 Be o s J JeAA1JOH 02 sui s s uaWade day swia sAs M N Bune u1 nA 5 suia sAs Bune u Lann pailj seb 10 Buluolssiululo pue uonesedaid uu 1s s 5 19 eM JOY 5 5 u r LH 10 5 qeL Section 2 Gas fired space heating and hot water systems 19 SIOJEIPE BY HO eas OS P nq UNDI bunp u v uo JOU 8JOSI UD ey 5 JOJEIPEL EJSU O QES ADE SI 11 DUPU UIPUL JO 10 SJOJE Pe U YM 1lu ul e 1 pue DI Bunejn2 Jo JuaWade ded qu nb suo pue sso DIOAP O JEPJO U GOLD 104 p insuoo q PINOYS l lloq v Seale JJM YOS Uf UND AJEWULA 19 10 u o osje nq sde HulyULp O AJUO JOU Ja eM p u Josun p J O QESIADE S II pauayos Ayjenyipe SI 10 IQIYUI UO SOL O JO XlOU2 v 2u n Jul Aew siv pue UOISOUOD JO p sp JDul ue SEY JAJEM YOS 15U S OU 66 SY SUV S S Bune u jenu 1 5 A JOY Ul JO 14 1
66. ally integral to appliances in categories E Fand G Controls should be appropriate to the level of sophistication of the appliance automatic appliances can benefit from advanced controls Provision of fuel storage for solid fuel appliances providing secondary heating The quantity of fuel consumed by secondary heating appliances is likely to be less than 7 tonne per year However it should be stored in a dry and convenient location Smoke control areas The location of the appliance within or without a smoke control area is critical to the process of optimising the choice of appliance and fuel For further information on solid fuel appliances see CE47 Energy Efficiency Best Practice in Housing Domestic heating by solid fuel Boiler systems Guidance and standards EN 12809 2001 A1 2004 AC 2006 2007 Residential Independent boilers fired by solid fuel Nominal output up to 50k W Requirements and test methods EN 12815 2001 A1 2004 2006 2007 Residential cookers fired by solid fuel Requirements and test methods EN 13229 2001 A1 2003 A2 2004 AC 2006 2007 Inset appliances including open fires fired by solid fuel Requirements and test methods EN 13240 2001 A2 2004 AC2006 2007 Room heaters fired by solid fuel Requirements and test methods EN 15250 2007 Slow heat release appliances fired by solid fuel Requirements and test methods EN 15544 One off tiled mortared stoves Calculatio
67. ary circulation to the hot water cylinder System circulation 2 0 a Independent time control of both the space heating and hot water Time and circuits temperature b Time control should be provided by use of either control i a full programmer with separate timing to each circuit or ii two or more separate timers providing timing control to each circuit or ili programmable room thermostat s to the heating circuit s with separate timing of the hot water or iv atime switch programmer two channel and room thermostat For new systems Independent control of the hot water circuit should be achieved by means of a cylinder thermostat and a timing device wired such that when there is no demand for hot water both the pump and circulator are switched off d For replacement systems Independent control of the hot water circuit should be achieved where practicable for circulator water heaters of less than 6 kW output by means of a cylinder thermostat and a timing device wired such that when there is no demand for hot water both the pump and circulator are switched off 3 0 a New dwellings with a total usable floor area up to 150 m should Space be divided into at least two space heating zones with independent heating timing controls one of which is assigned to the living area zoning b New dwellings with a total usable floor area greater than 150 m2 should be provided with at least two space heating zones each having separate t
68. at pump vil 106 Domestic Building Services Compliance Guide 2010 Edition Table 35 Recommended minimum standards for warm air heat pumps ground to air water to air and air to air systems by the manufacturer should be maintained b Pipe sizes should be in accordance with the manufacturers recommendations c The refrigerant pipework on split systems should be insulated in line with the manufacturer s recommendations d If summer cooling is provided by the heat pump provision should be made for condensate drainage from the indoor terminal units e For ground to air and water to air systems all external pipework between the dwelling and the external heat exchanger should be insulated by following TIMSA guidance f For ground to air and water to air systems constant water flow should be maintained through the heat pump Warm air Supplementary heat pumps New and replacement systems information 1 0 a Minimum clearances adjacent to Installation should be carried Installation all airflow paths as recommended out byan installer approved by the manufacturer Installation that requires access to the refrigeration circuit or the connection of split systems should be carried out by acompetent refrigeration and air conditioning engineer holding a refrigerant handling certificate and preferably an Engineering Services Skillcard TIMSA HVAC guidance for achieving co
69. aters for space heating not exceeding a net heat input of 70 kW vvithout a fan to assist transportation of combustion air and or combustion products BS EN 1319 2009 Domestic gas fired forced convection air heaters for space heating with fan assisted burners not exceeding a net heat input of 70 kW BS EN 483 2000 Gas fired central heating boilers Type C boilers of nominal heat input not exceeding 70 kW 28 Domestic Building Services Compliance Guide 2010 Edition Table 4 Recommended minimum standards for efficiency and installation for gas fired warm air heating systems continued b Ductwork that is newly installed or replaced should be insulated in accordance with the recommendations of BS 5422 2009 Gas fired warm air Supplementary heating New and replacement systems information 2 0 a The system should be installed in BS 5864 2004 Installation Installation accordance with BS 5864 2004 and maintenance of gas fired ducted air heaters of rated input not exceeding 70 kW net second and third family gases Specification BS 5422 2009 Method for specifying thermal insulating materials for pipes tanks vessels ductwork and equipment operating within the temperature range of 40 C to 700 C Section 2 Gas fired space heating and hot water systems 29 Table 5a Recommended minimum standards for control of gas fired warm air heating
70. ating 50 Domestic Building Services Compliance Guide 2010 Edition Oil fired fixed independent appliances for primary heating Oil fired fixed independent space heating appliances in new dwellings which are provided as the primary heat source should meet the following conditions a The efficiency of the appliance gross calorific value should be not less than 60 The appliance manufacturer s declaration of appliance performance should include the following words The net efficiency of this appliance has been measured as specified in OFS A102 2004 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings b Each appliance should be capable either independently or in conjunction with room thermostats or other suitable temperature sensing devices of controlling the temperatures independently in areas that have different heating needs e g separate sleeping and living areas Oil fired fixed independent appliances for secondary heating Oil fired fixed independent space heating appliances in new dwellings which are provided as the secondary heat source should have a minimum efficiency gross calorific value of not less than 60 per cent Supplementary information Further guidance
71. ating plant offset by the emissions saved as a result of any electricity generated by the heating plant divided by the heat output over a year It is measured in units of kg of CO per kWh To calculate HPER it is necessary to know the plant size ratio Note The HPER includes any auxiliary space and water heating that may be necessary i e it represents the performance of all heating plant needed to provide space and water heating service to the building assuming a standard demand pattern Plant size ratio PSR is defined as the nominal heat output of the heating plant divided by the design heat loss the average heat loss of the building on a cold day with a temperature differential of 24 2 C Note For a given heat demand the PSR determines the part load condition for the heating plant 126 Domestic Building Services Compliance Guide 2010 Edition 13 3 Micro CHP systems a For new systems and replacement systems the HPER of the micro CHP package calculated as in c below should be no greater than the carbon emission factor for the fuel divided by the minimum efficiency for a regular boiler using that fuel at the PSR determined as in b below The design heat loss of the dwelling should be calculated using the Energy Saving Trusts Whole house boiler sizing method for houses and flats The PSR for the micro CHP system when operating in the intended dwelling should be calculated as defined in 13 2 above The HPER of the
72. be made to accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot pipework in unheated areas against water circuits should be insulated wherever freezing Guidance is available in they pass outside the heated living space or BS 5422 2009 Method for specifying through voids which communicate with and thermal insulating materials for pipes are ventilated from unheated spaces tanks vessels ductwork and equipment il Primary circulation pipes for domestic hot operating within the temperature range water circuits should be insulated throughout 40 C to 700 C their length subject only to practical BRE Report No 262 Thermal insulation constraints imposed by the need to penetrate avoiding risks 2002 Edition joists and other structural elements ili All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept hot by that circulation should be insulated Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels Pipe outside Maximum diameter heat loss Replacement systems 86 mm 7 06 W m a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim
73. cacy compact fluorescent lamps greater than 45 lamp lumens per Light fittings with GLS tungsten circuit vvatt and a total output filament lamps or tungsten greater than 400 lamp lumens halogen lamps would not meet the c Light fittings whose supplied standard power is less than 5 circuit watts are The Energy Saving Trust publication excluded from the overall count of GIL 20 Low energy domestic the total number of light fittings lighting gives guidance on identifying suitable locations for fixed energy efficient lighting Fixed Where fixed external lighting is external installed provide light fittings with the lighting following characteristics a Either i lamp capacity not greater than 100 lamp watts per light fitting and ii all lamps automatically controlled so as to switch off after the area lit by the fitting becomes unoccupied and ili all lamps automatically controlled so as to switch off when daylight is sufficient i lamp efficacy greater than 45 lumens per circuit watt and ii all lamps automatically controlled so as to switch off when daylight is sufficient and ili light fittings controllable manually by occupants 124 Domestic Building Services Compliance Guide 2010 Edition Table 40 Recommended minimum standards for fixed internal and external lighting continued British Standards BS EN 15193 2007 Energy performance of buildings Energy requirements
74. ct gas appliances Gas fires convector heaters fire back boilers and heating stoves 2nd and 3rd family gases BS 5871 2 2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Inset live fuel effect gas fires of heat input not exceeding 15 kW and fire back boilers 2nd and 3rd family gases BS 5871 3 2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Decorative fuel effect gas appliances of heat input not exceeding 20 kW 2nd and 3rd family gases BS 5871 4 2007 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effect gas appliances Independent gas fired flueless fires convector heaters and heating stoves of nominal heat input not exceeding 6 kW 2nd and 3rd family gases Section 3 Oil firedspace heating and hot water systems 35 Section 3 Oil fired space heating and hot water systems 3 1 Scope of guidance This section provides guidance on the specification of oil fired space heating and hot water systems in dwellings to meet relevant energy efficiency requirements in building regulations The guidance applies to the following types of oil fired heating system wet central heating systems e range cookers with integral central heatin
75. dS OM jsea 16 U1IAA aq pinous z l 0el uey ease 10011 qesn e o e L S UH AAQ q eade BulAI v 0 pau isse s U3IUAA JO vo O4 UOD 1u pu d puli Ul AA S UOZ Hurjeay Epds OM sea 16 O1U1 p piAIp aq PINOYS z l Buluoz 6 1155 MAU JO SY OS 0 dn eae lqesn e1o e YIM SHul jamq e 02 DO J9 U BPIAOIC you s op uo e SAYL S PA 2RhE SOUL U foasn HO aie dund pue J ioq au u u 5120 1972M JOY JO deds ay Jong JLAY 10 22 OU S 1 U UBM 121 OS Dol ale S OJJUOD YDIYM Ul ADO J9 U J Jioq E ALY p nous uu s s y oH lul l llog SUH S S M U JO SY y 4 15A JOY 311s uuop saljddns osje s lloq u1J e 02 SUOI IPUOD IOIuO3 Dunp v adeds uo Buipu d p AL Uud ay o inyej duu yndul JaMod ay Bul e npoui Jo ajqeded aq pue 0 1402 Jajlog sulaysAs Mau 10 SV auNyesadwa MOJ e YIM Dau aq Pinoys l lloq e 01 sul 3s4s juaWade day SuH 3SAS M N 6une u 3 AA 212 14 swia sAs Bune u e nu 1 AA31412 Jo oj uo2 104 5 t qeL Section 4 Electric heating systems 55 pasa e o p u JOU SBOP YOMadid pue qe Ins sio elpel Y PAPIAOIA e souuu UILLI Y Ul 4001 v Ul UPU 1 U20 SIO 51DE UE UO U JeAIND JO S A PA
76. e for the cooking function and one for the boiler b the integral boiler should have a seasonal efficiency SEDBUK 2005 or SEDBUK 2009 in excess of 80 per cent the manufacturer s declaration of appliance performance and SEDBUK value should include the following words L seasonal efficiency SEDBUK xx il case heat emission value yy kW ili heat transfer to water at full load zz kW iv the efficiency values may be used in the UK Government s Standard Assessment Procedure SAP for the energy rating of dwellings The test data from which they have been calculated has been certified by insert name and or identification of Notified body See www rangeefficiency org uk If the integral boiler is a condensing boiler the declaration should make clear whether the efficiency has been calculated in accordance with SEDBUK 2005 or SEDBUK 2009 If it does not then SEDBUK 2005 must be assumed d the integral boiler should meet the minimum standards for oil fired central heating systems in Tables 9 10 and 11 for system circulation hot water storage system preparation commissioning controls and insulation Section 3 Oil fired space heating and hot water systems 49 3 4 Continually burnino oil fired vaporising appliances providing secondary heating or hot water This section provides guidance on the specification of oil fired vaporising appliances providing heating or hot water for dwellings The guidance does not apply to ap
77. e reasonably energy efficient These functional requirements are often drafted in broad terms and so it may not always be immediately clear to a person carrying out work how to comply with the relevant requirements Consequently documents are often issued which provide practical guidance on ways of complying with specific aspects of building regulations in some of the more common building situations Those documents are called Approved Documents in England and Wales Technical Handbooks in Scotland and Technical Booklets in Northern Ireland Approved Documents Technical Handbooks and Technical Booklets are intended to provide practical guidance but they are not intended to be comprehensive Consequently they may contain references to other documents which will provide more detailed information and assistance on parts of the guidance This guide is one of those documents It provides more detailed information on the guidance contained in Approved Documents L1A and L1B Section 6 of the Domestic Technical Handbook and Technical Booklet F1 about compliance with the energy efficiency requirements which apply when installing fixed building services in new and existing buildings Note Following guidance in an Approved Document Technical Handbook or Technical Booklet does not guarantee compliance with building regulations If you follow the relevant guidance in an Approved Document Technical Handbook or Technical Booklet and in any document referred to
78. ed where independently certified against the harmonised European Standards now in place Appliance types Appliances which are most suitable for secondary space heating are summarised in Table 23 Table 23 Appliance types Appliance type Notes Open fire with high output boiler when used with link up Small solid fuel room These can be a dedicated wood burner or burn logs in a multi heaters stoves fuel appliance or use pellets They can be matched with a main especially wood fired heating system fired by the same or a different primary fuel or off peak electricity to reduce carbon emissions especially wood fired with or without thermostatic control Many designs can provide heating during power cuts Mineral fuel appliances can be chosen but the attention of designers is drawn to the probable need to supply additional measures as the carbon emission values of these tend to be high Mineral fuel appliances may often have slightly higher efficiencies than their wood burning counterparts Multi fuel room heaters can enable the user to burn renewable wood as well as an alternative to mineral fuels outside smoke control areas Small solid fuelstoves The efficiency of these can be higher than that of dry with boilers appliances They can be integrated with the primary wet heating system Multi fuel appliances enable the householder to burn renewable wood outside smoke control areas 76 Dom
79. eldde p ll lo 1811 jenuew Jasn 5 y Dulpnpul Jeep y o SU pue uu 1s s y JO uolleue dx JNJ e A b p nous Jayjeysul UV 1S S Beiols 1J eAA1OU JO 1 10q JejNdIWed v o D3IJID dS aq JIAA SUO DNAYSUI s u SUOIJINAYSUI SJaINPe NUeW v LD DULPIODDL Ul PAUO SS LULUOD aq p nous1u uudinb y Sjo1 U02 pue sund se yons u uudinb payeldosse 11015 O pasn ag ued 24140 A0 UUM J u DBo ul s s Beiols B6uluoirs pabeuew pue p onpold se wia sXs Ja EM JOY JO 19 10q JO SILUWWOD JUBWNIOG p llonuo out sulaysAs Mau 10 SV e uoljje1su v JO 40 0 2 uo 05 BY HO P S os e 119 bunp u v uo JOU a e Os UeD 15U p nunuo2 S AJEA 10 IDE1 E SUI O QES ADE SI yjyu une 1 DUPU UIPUL JO 10 SIO eIDEI Ja eM pue Punou UU JULIE uoneuied id pue p nu Bunejn2 Jo u uu 2e d LL uollpos ui s s qu nb suoo pue sso DIOAP O U as suu 1s s jew y JE OS JOJ Op uoneuuo ul A1ejyu uu ddns sui s s uaWade day Sul S4S M N B6une u M p nunuo sus s4s Bune u le nu p utJ Jio 104 Buluolssiululo pue uoneued 1d uu 1s s abeJ10 s 1 1eAA1ou uone n24D Wia SAs u pijj 10 spiepue suuinuululuu PAPUBLULWWODAY 6 lqEL
80. en by physical provided means e softened water supply side stream filtration biocide 3 0 Provision should be Heat meters made in the design for including heat meters either at the time of installation or at a later date without major pipework changes 4 0 The community heating Where the central heat source Commissioning system should be commissioned so that the design volume flovv rates are supplied to each dvvelling and there is no excessive bypassing of water that would leadto higher pumping energy use The flow rates in individual heat emitters should be balanced using appropriate return temperatures or by using calibrated control valves The systems within the dvvellings should be demonstrated to the resident and suitable information provided onthe operation of the controls includes a low carbon heat source the control system should be proven by demonstrating that the lovv carbon heat source will normally act as the lead heat source 88 Domestic Building Services Compliance Guide 2010 Edition Table 28 Recommended minimum standards for insulation of internal and external pipework for community heating systems Standards for internal pipework in new Supplementary information systems a Pipesshould be insulated to comply with the Insulation of pipework in unheated maximum permissible heat loss indicated in areas the Supplementary Information column and Extra pr
81. eratures in the community heating system e the impact on flow rates in the community heating system the impact on heat demand profiles and compatibility with the heat source e standing losses from storage cylinders calorifiers and the impact on energy use e the quality of service provided in terms of flow rate and temperature control the advantages of having local storage in terms of security of supply Where the network is extensive and hot water production is centralised a two stage water heating system can be used to deliver low return temperatures In this design the return water from the space heating circuit is used to pre heat the cold feed to the domestic hot water Section 6 Community heating systems 87 Table 27 Recommended minimum standards for domestic hot water production storage and water treatment heat meters and commissioning for community heating Community New systems Supplementary information heating 2 0 A suitable system for Asuitable long term programme of Water introduction of water water treatment is essential to preserve treatment treatment chemicals the life of the community heating into the community system by limiting internal corrosion heating system ina Additional chemical and physical controlled manner with treatment should be evaluated facility for monitoring of especially for larger systems including water quality shouldbe removal of oxyg
82. ers with integral central heating boilers Continually burning oil fired vaporising appliances providing secondary heating or hot water Oil fired fixed independent space heating appliances Electric heating systems 4 1 4 2 4 3 Scope of guidance Electric boilers serving central heating systems Electric heating systems other than electric boilers for central heating Solid fuel heating systems 5 1 5 2 5 3 5 4 Scope of guidance Solid fuel appliances for primary heating Central heating systems using certain types of solid fuel appliances Solid fuel appliances for secondary heating Contents 3 CONN O O U1 U1 14 14 26 26 30 32 33 35 35 48 49 49 51 51 60 63 63 66 75 4 Domestic Building Services Compliance Guide 2010 Edition Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12 Section 13 Section 14 Community heating systems 6 1 Scope of guidance 6 2 New and existing community heating schemes Underfloor heating systems 7 1 Scope of guidance 7 2 Underfloor heating in new dwellings Mechanical ventilation systems 8 1 Scope of guidance 8 2 Energy efficiency of mechanical ventilation systems Heat pump systems 9 1 Scope of guidance 9 2 Key terms 9 3 Warm water and hot water heat pumps Comfort cooling systems 10 1 Scope of guidance 10 2 Air cooled and water cooled air conditioners Solar water heating 11 1 Scope of guidance
83. estic Building Services Compliance Guide 2010 Edition Table 23 Appliance types continued Appliance type Notes Range cookers Typically appliances which are installed in a living area and are designed to provide some useful heat from their case into the space in which they are located They are available ina variety of shapes and sizes and can incorporate a boiler which can be connected to dual fuel integrated systems e g link up Multi fuel versions are also available Where requested These do not have thermostatic control of the burning rate open fires HETAS and have lower efficiencies However they are able to burn categories B1 B2 and 1 wood logs with correspondingly low net carbon emissions B3 can be fitted t must be stressed that large open fires with large free face areas see Note 1 usually have a need for ventilation well in excess of that available in a property built to modern standards of air tightness This Is likely to lead to severe operational problems unless special steps are taken to provide the required air supply The use of such large simple open fires is penalised in the SAP calculations Note 1 The free face area of an open fire is its opening width times its opening height Section 5 Solid fuel heating systems 77 Controls for solid fuel appliances providing secondary heating Wherever possible solid fuel appliances should have thermostatic control these are usu
84. ey 10 v JO sneo g ALES 1 02 aq o SI In eJ dui lno JOY 3ns uuoq uu s s f n pijos y 10 UOISIOUULUI LDD PIA U n old 1501 lqissod pue 10 em JOY ainssa d SU apIAOJ osje Oy p sn ase sapu beo s nq spousd s quunis Buunp pajzesauab 1 y JO Wed 1972M JOY y JO uunIOA aU 51 Aep UM zzA S 0 Z O x o JOU sso 1e u e aAeY uollppe u pue 86L Sg YM jdwo p nous si pull uonpulqulo2 71 S 1O S JEUUAY UONPOLHD S DUP LOH q UORP DOSSV JOH 84 JO zb JO uono s Jo slu uu uinb l uonpinsul BY JAS p nous suu s s 15 uoge ANAEID p sn aq JOU p nous suu s s p zu nunN Pp suole n06 i Buipjing unu Bu duio2 se poq Jayjoue q Data aq Ill 10 IDUNOD 2 J PAA y 1u uu 9JDv Jo pieog us ug ay q payed aq J0 268Z1 NI Sg 2 7 s onpoid uu s s Ja eM JOY p lu Auf 2 99S Sg JO slu uj uinb 1i Jabueypxe 1e u pue 550 e y ay duuo2 p nous Jaddod uey 5 Ul Sl pul p U A q 194 BY 10 O SI SN Ja JO 5 U ELU AY JAN pilos 86 1 S940 000Z 1 99G Sg JO slu uui uinb u 5
85. for lighting Other related documents CE80 Domestic lighting innovations Energy Efficiency Best Practice in Housing CE61 Energy efficient lighting guidance for installers and specifiers Energy Saving Trust EP84 Housing for people with sight loss Thomas Pocklington Trust Design Guide IP412 Making the most of your sight Improve the lighting in your home RNIB and Thomas Pocklington Trust Energy Saving Trust best practice standards The Energy Saving Trust sets best practice Energy Saving Recommended ESR standards for lamps that cover not only energy efficiency but also other aspects of quality including colour rendering warm up time product life and power factor It is advisable to install only ESR low energy lamps in dwellings Section 13 Micro combined heat and power packages 125 Section 13 Micro combined heat and power packages 13 1 Scope of guidance This section provides guidance on the specification of micro combined heat and power micro CHP packages for dwellings to meet relevant eneroy efficiency requirements in building regulations The guidance covers micro CHP systems with an electrical output less than 5 kVVe vvhich are heat led e capable of exporting electricity to the grid and controlled in such a way as to avoid heat dumping 13 2 Key terms Heating plant emission rate HPER is the annual CO emissions from fuel and power consumed by the he
86. frequently occurring situations and deals with the most commonly used fixed building services technologies In doing so it neither endorses these methods and technologies nor excludes other more innovative technologies Innovative technologies are not excluded from the compliance process and alternative means of achieving compliance with the functional requirements of building regulations may be possible Where the technology has been the subject of a recognised testing procedure that assesses its energy performance this may be used to indicate that the system is adequately efficient In the event that there is no recognised testing standard suitable calculations or modelling methods may be used to show the carbon performance of the system 6 Domestic Building Services Compliance Guide 2010 Edition 1 3 European Directives Fixed building services products such as boilers circulators and heat pumps shall at the appropriate time comply with all relevant requirements of EU Directives including the Eco design of Energy Using Products EuP Framework Directive 2005 32 EC and Directive 2009 28 EC on the Promotion of the Use of Energy from Renewable Sources Renewable Energy Directive 1 4 Status of guide Building regulations contain functional requirements called standards in Scotland such as requirements that buildings must be structurally stable must be constructed and fitted to ensure reasonable levels of fire protection and must b
87. g boilers vaporising appliances providing secondary heating or hot water fixed independent space heating devices 3 2 Oll fired wet central heating systems Oil fired central heating systems which are provided as new systems or replacement systems in dwellings should meet the minimum standards for a boiler efficiency system circulation hot water storage system preparation and commissioning in Table 9 b boiler interlock zoning and time and temperature control of the heating and hot water circuits in Table 10 pipework insulation in Table 11 7 All gas appliances must be installed by a competent person in accordance with the current issue of the Gas Safety Installation and Use Regulations The installation should follow the manufactureris instructions and should comply with all relevant parts of the Building Regulations and for wet systems the Water Regulations 36 Domestic Building Services Compliance Guide 2010 Edition ou bulsu puo uou y JO ag ACW sJ Jloq YDIYM Ul s 2ue suun2i Jeuond 2x v DulUsilqe s 104 ainpadoid panoidde 1NO S S sBulJJ AAD 104 lnp oold 1491155955 15 1 49 10 bulsu puoo y o plnD DTD M ANIEA GOO 8035 y q o p uunsse aq pinoys azep e AID JOU SBOP a N eJA I SJ INPLJNULUI P ul UaAI6 242121 YN IGIS y A sBulJJgAAD 10 UOISSIWA UOGUED y 2 o 6002 dVS Aq p
88. g e se u2ns1onpoid y uo D lll qe Aled p nous si puli S5 Ja eM JOY Jaddod pajua AM Ul 1e u Al ep uN Ul SSO e y Hulpueys il s ni Ul Dede eultuou II SS A JO d 1 Uoneuuolul BulAAo o v UMAN e e p nous S SS A 15 1942M OY V Buill qe1 Oe VAN 40 04 02 1972M ay uoy Jo piroq usnlig ay se yons poq 1s p 1Ip J22e ue Aq 195 se piepue s quajeninba ue 10 900Z 268Z 1 NI 58 YUM Mu pinoys sppnpoid l s s apos 1942M JOY p lu Aun s IO S IPUL U UONEDIJID ds DUPLO Lad UOI B8IDOSSV 19 2M JOH 94 JO slu uu uinb l uonpinsul BY 1 vl p nous 54 5 5 Hesozs AVE P 5 015 Azeullud Of uoneuuo ul swa sAs 1u uu 2e d 1 pue M N 6une u 1J AA314 239 3 p nul uo3 swiaysAs Bune u enu JOM 31 n32 u Beiols 19 EM JOY 40 spiepue s LUNWIUIW p pu uuuio32 u S qeL Table 16 Recommended minimum standards for insulation of pipework in central heating systems with electric boilers New systems Section 4 Electric heating systems 59 Supplementary information a Pipes should be insulated to comply with the maximum permissible heat loss indicated in the Supplementary Information column and labelled accordinoly as follows i Primary circulation pipes for heating and
89. g water at these temperatures supplementary heating should be provided and controlled as described in other sections of this guide Controls should include an auxiliary heating regime to 60 C or more for disinfection purposes The domestic hot water DHVV system should include a tank thermostat and a time clock to optimise the time taken to heat the water not necessarily be providing heated water to the space heating system Section 9 Heat pump systems 105 Table 34 Recommended minimum standards for warm water and hot water heat pumps ground to water water to water and air to water systems continued Warmand hot water Supplementary heatpumps Newand replacement systems information 4 0 a Heat pump unit controls should Controls include i control of water pump operation internal and externalas appropriate ii control of water temperature for the distribution system ili control of outdoor fan operation for air to vvater units iv defrost control of external airside heat exchanger for air to water systems v protection for water flow failure vi protection for high water temperature protection for high refrigerant pressure vill protection for air flow failure on air to vvater units b External controls should include i room thermostat to regulate the space temperature and interlocked vvith the heat pump unit operation ii timer to optimise operation of the he
90. hot water circuits should be insulated wherever they pass outside the heated living space or through voids which communicate with and are ventilated from unheated spaces il Primary circulation pipes for domestic hot water circuits should be insulated throughout their length subject only to practical constraints imposed by the need to penetrate joists and other structural elements ili All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed iv If secondary circulation is used all pipes kept hot by that circulation should be insulated Insulation of pipework in unheated areas Extra provision may need to be made to protect central heating and hot water pipework in unheated areas against freezing Guidance is available in BS 5422 2009 Method for specifying thermal insulating materials for pipes tanks vessels ductwork and equipment operating within the temperature range 40 C to 700 C e BRE Report No 262 Thermal insulation avoiding risks 2002 Edition Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels Pipe outside Maximum diameter heat loss Replacement systems 8 mm 7 06 W m a Whenever a boiler or hot water storage vessel 1
91. hting and for microgeneration of heat by heat pumps solar thermal panels and micro combined heat and power packages They are summarised in the table below The sections that follow the table give guidance on how to meet these standards It is important to note that many of these recommended minimum standards will need to be exceeded if the building regulations target carbon dioxide emission rate TER for new dwellings is to be met 10 Domestic Building Services Compliance Guide 2010 Edition services Building service Summary of recommended minimum energy efficiency standards for building Standard2 Gas fired wet central heating systems Seasonal efficiency SEDBUK 20055 SEDBUK 2009 Condensing bollers 90 88 Non condensing boilers where permitted 78 78 Range cooker boilers 75 75 Gas fired warm air heating Efficiency See Table 4 Gas fired fixed independent space heaters Gas and LPG primary 63 Efficiency gross Gas and LPG secondary heating 63 new build 45 96 existing build Decorative fuel effect Not specified set to 20 in SAP 2009 Gas fires in combined fire backboilers Efficiency gross replacement systems Natural gas LPG Inset live fuel effect 45 46 All types except inset live fuel effect 63 64 Oil fired space heating and hot water Seasonal efficiency Systems SEDBUK 2005 SEDBUK 200
92. iance guide Mechanical ventilation systems Specific fan power SFP max Intermittent extract ventilation systems 0 5 W l s Continuous extract ventilation systems 0 7 WKI s Continuous supply ventilation systems 0 5 VV s Continuous supply and extract with heat 1 5 VV s recovery ventilation systems Heat recovery Dry heat recovery efficiency Balanced mechanical ventilation systems 70 Heat pump systems Seasonal Performance Factor BS EN 15450 Tables C1 amp C2 SPF New build Existing build Air vvater 2 2 5 Ground water 20 3 3 Water water 3 8 3 5 Comfort cooling systems Energy efficiency ratio EER Air cooled air conditioners working in cooling 2 4 mode Water cooled air conditioners working in 2 5 cooling mode Fixed air conditioners gt Class C in Schedule 3 of the labelling scheme The Energy Information Household Air Conditioners No 2 Regulations SI 2005 1726 Solar water heating Circulation pump power 50W lt 2 of peak thermal power of collector Section 1 Introduction 13 Summary of recommended minimum energy efficiency standards for building services continued Building service Standard Fixed lighting Lighting efficacy Internal light fittings 7596 45 lamp lumens per circuit watt External lighting automatic presence and lamp capacity lt 100 lamp watts per daylight control light
93. ical ventilation systems in dwellings to meet relevant energy efficiency requirements in building regulations The guidance covers the following types of mechanical ventilation e intermittent mechanical extract ventilation e continuous mechanical extract ventilation continuous mechanical supply ventilation e continuous mechanical supply and extract with heat recovery 8 2 Eneroy efficiency of mechanical ventilation systems Mechanical ventilation systems should a follow the guidance in i GPG 268 Energy efficient ventilation in dwellings a guide for specifiers and li the CLG publication Domestic ventilation compliance guide available from www planningportal gov uk approveddocuments gt Part L gt Associated documents and b meet the minimum standards for specific fan power heat recovery efficiency and controls in Table 32 98 Domestic Building Services Compliance Guide 2010 Edition Table 32 Recommended minimum standards for mechanical ventilation systems Supplementary New and replacement systems information 1 0 a Mechanical ventilation systems should be Fan power designed to minimise electric fan power Specific fan power SFP should not be worse than i 0 5 WA s for intermittent extract ventilation systems ii 0 7 WA s for continuous extract ventilation systems iii 0 5 VV s for continuous supply ventilation systems iv 1 5 WA s for continuous supply and extract with heat recove
94. ies is avallable in the TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations Insulation for pipework in unheated areas Extra provision may need to be made to protect vvater carrying pipework in unheated areas against freezing Further guldance is available in 55422 2009 Method for specifying thermal insulating materials for pipes tanks vessels ductwork and equipment operating within the temperature range of 40 C to 700 C e BRE Report No 262 Thermal insulation avoiding risks 2002 Edition Section 11 Solar water heating 121 Supplementary information Guidance and standards Microgeneration Certification Scheme MIS3001 Requirements for contractors undertaking the supply design installation set to work commissioning and handover of solar heating microgeneration systems January 2010 Energy Efficiency Best Practice in Housing CE131 Solar water heating systems Guidance for professionals CIBSE Solar heating design and installation guide ISBN 978 1 903287 84 2 CE 51 GIL59 Central Heating System Specifications CHeSS 2005 BS 7431 1991 Method for assessing solar water heaters Elastomeric materials for absorbers connecting pipes and fittings BS 6785 1986 Code of practice for solar heating systems for swimming pools prCEN TS 12977 3 2006 Performance characterisation of stores for solar heating systems
95. ighting unit that can comprise one or more lamps and lampholders control gear and an appropriate housing The control gear may be integrated in the lamp or located elsewhere in or near to the fixed light Fixed external lighting means lighting fixed to an external surface of the dwelling supplied from the occupiers electrical system It excludes lighting in common areas of blocks of flats and in other communal accessways 12 3 Internal and external lighting Fixed internal and external lighting should meet the minimum standards for efficacy and controls in Table 40 Section 12 Lighting 123 Table 40 Recommended minimum standards for fixed internal and external lighting Lighting New and replacement systems Supplementary information Fixed a n the areas affected by the building 1 Light fittings may be either internal work provide low energy light e dedicated fittings which will lighting fittings fixed lights or lighting units have separate control gear and that number not less than three per will take only low energy lamps four of all the light fittings in the e g pin based fluorescent or main dwelling spaces of those areas compact fluorescent lamps or excluding infrequently accessed e standard fittings supplied spaces used for storage such as with low energy lamps with cupboards and wardrobes integrated control gear e g b Lowenergy light fittings should bayonet or Edison screw base have lamps with a luminous effi
96. iming and temperature controls c The provisions for zoning for replacement systems in existing dwellings should be as for new dwellings where practical 2 5 Gas fired fixed independent space heating appliances Fixed independent space heating appliances may be installed as a means of primary or secondary space heating Section 2 Gas fired space heating and hot water systems 31 Gas fired fixed independent appliances for primary space heating Gas fired fixed independent space heating appliances in new and existing dvvellings which are provided as the primary heat source should meet the following conditions a the appliance should be one of the types described in Table 6 b the efficiency of the appliance gross calorific value should be not less than 63 per cent 70 net the appliance manufacturer s declaration of appliance performance should include the following words The efficiency of this appliance has been measured as specified in insert appropriate entry from Table 6 and the result after conversion to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data has been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings d in nevv dwellings each appliance should be capable either independently or in conjunction with room thermostats or other su
97. ing is provided by the heat pump all water distribution pipework should be insulated to prevent condensation following the guidance in the TIMSA guide d External pipework between the dwelling and the ground heat exchanger should be insulated following the TIMSA guidance e The ground loop water circuit should be protected with an anti freeze solution and inhibitor as recommended by the heatpump manufacturer f Ground loops should be cleaned with a cleaning fluid and biocide as part of the commissioning process Constant water flow should be maintained through the heat pump Pipe sizes should be in accordance with the manufacturer s recommendations Installation Installation should be carried out by an installer approved by the manufacturer If during installation access to the refrigeration circuit is needed a competent refrigeration and air conditioning engineer with a valid refrigerant handling certificate or an Engineering Services Skillcard should carry out the work Exposed refrigeration pipework should be insulated and enclosed in protective trunking to limit accidental damage Installation of the dwelling s water distribution system should be undertaken by a competent central heating specialist 104 Domestic Building Services Compliance Guide 2010 Edition Table 34 Recommended minimum standards for warm water and hot water heat pumps ground to water water to water and a
98. ir to water systems continued Warm and hot water Supplementary heat pumps New and replacement systems information 2 0 g The internal water distribution Guidance and standards Installation circuit should contain an inhibitor TIMSA HVAC guidance for and and may be protected by an anti achieving compliance with commiss freeze solution as recommended Part of the Building ioning by the heat pump manufacturer 1 Regulations continued h Ground loops should be filled BS EN 378 Specification for with a heat transfer fluid Installers refrigerating systems and heat should also refer to the equipment pumps manufacturer S installation TR30 Guide to good practice instructions for appropriate 5 pumps treatment products and special HVCA July 2007 requirements for individual appliance models MIS 3005 Requirements for contractors undertaking the supply design installation set to work commissioning and handover of microgeneration heat pump systems BERR 2008 3 0 a Forfull heating the heat pump The heat pump may be utilised Domestic and any supplementary domestic for all or part of the DHW hot water hot water heating should be load During the DHW heating capable of supplying water in period the heat pump may the range 60 C to 65 C This is applicable to ground to water water to water and air to water type heat pumps If the heat pump is not capable of supplyin
99. itable temperature sensing devices of controlling the temperatures independently in areas that have different heating needs e g separate sleeping and living areas In existing dwellings wherever practical temperature controls should be upgraded to the standards required for new dwellings Table 6 Acceptable types of natural gas and LPG fired fixed independent appliances for primary space heating British Standard designation appliance type BS EN 1266 2002 Independent gas fired convection heaters incorporating a fan to assist transportation of combustion air and or flue gases BS 7977 1 2002 Specification for safety and rational use of energy of domestic gas appliances Radiant convectors BS EN 613 2001 Independent gas fired convection heaters BS EN 13278 2003 Open fronted gas fired independent space heaters Gas fired fixed independent appliances for secondary space heating Gas fired fixed independent space heating appliances which are provided as the secondary heat source should meet the following conditions a in nevv dwellings the appliance efficiency gross calorific value should be not less than 63 per cent 70 net 32 Domestic Building Services Compliance Guide 2010 Edition b in existing dwellings the appliance efficiency gross calorific value should be not less than 45 per cent 50 net the appliance manufacturer s declaration of appliance performance should include the following words
100. l for space heating in Table 5a and for space heating combined with water heating in Table 5b Section 2 Gas fired space heating and hot water systems 27 Table 4 Recommended minimum standards for efficiency and installation for gas fired vvarm air heating systems Gas fired warm air Supplementary heating New and replacement systems information 1 0 a Gas fired warm air units should meet British standards Efficiency the requirements as appropriate to BS EN 778 2009 Domestic the design of the appliance of i BSEN 778 2009 or ii BS EN 1319 2009 b If a gas fired circulator is incorporated in the vvarm air unit to provide domestic hot water it should be able to deliver full and part load efficiency at least equal to that prescribed by BS EN 483 2000 The manufacturer s declaration of appliance performance should include the following words i Combined warm air unit and circulator This product has been assessed against the test methods set out in BS EN 778 2009 BS EN 1319 2009 BS EN 483 and certified as meeting those minimum requirements by insert name or identification of Notified Body ii Warm air unit alone This product has been assessed against the test method set out in BS EN 778 2009 or BS EN 1319 2009 and certified as meeting the minimum requirements by insert name and or identification of Notified Body Delete as appropriate gas fired forced convection air he
101. l of primary and secondary electric heating systems other than with electric boilers Electric heating Supplementary systems New and replacement systems information Warmair 1 0 a Time switch programmer and systems Time and room thermostat or temperature b programmable room thermostat control either integral to the heater or external 2 0 a Dwellings with a total usable Zone floor area up to 150 m should control be divided into at least two space heating zones with independent temperature control one of which is assigned to the living area b Dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls Time control should be provided by i multiple heating zone programmers or ii a single multi channel programmer or iii programmable room thermostats or iv separate timers to each circuit or v la combination of iii and iv above For single storey open plan dvvellings in vvhich the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate 62 Domestic Building Services Compliance Guide 2010 Edition Table 17 Recommended minimum standards for control of primary and secondary electric heating systems other than with electric boilers continued damper or other thermostatica
102. lly controlled method Electric heating Supplementary systems New and replacement systems information Panel 3 0 a Time control by a programmable Panel heater heaters Local time switch integrated into the systems provide time and appliance or a separate time Instantaneous temperature switch heat control b Individual temperature control by integral thermostats or by separate room thermostats or programmable room thermostats Storage 4 0 a Automatic control of input charge 1 Charge control heaters Charge is the ability control to detect the internal temperature andadjust the charging Of the heater accordingly 5 0 a Temperature control by adjusting Temperature the rate of heat release from the control appliance using an adjustable Section 5 Solid fuel heating systems 63 Section 5 Solidfuel heating systems 5 1 Scope of guidance This section provides guidance on meeting the eneroy efficiency standards in building regulations for the following types of solid fuel heating appliances and systems used to deliver primary and secondary heating batch fed open fires batch fed and automatic feed dry room heaters stoves batch fedlog and multi fuel appliances automatic feed pellet stoves with and without boilers batch fed and automatic feed room heaters with boilers batch fed cookers with boilers not exceeding 7 5 kW batch fed independent boilers and automatic feed anthracite wood pellet w
103. ls and Batch logs Automatic 70 wood pellets part load 75 wood pellets nominal load G1 Cooker without boiler not 65 mineral fuels Batch exceeding 3 5 kW 55 wood fuels G2 Cooker with heating boiler 65 mineral fuels Batch exceeding 3 5 kW 60 wood fuels J2 Independent boiler batch fed 75 Batch wood logs only J3 Independent boiler batch fed 65 mineral fuels Batch multi fuel 75 wood logs J4 Independent boiler anthracite 70 up to 20 5 kW Automatic 75 above 20 5 kW J5 Independent boiler 75 nominal load Automatic wood pellets chips 70 part load Slow heat release appliances 65 Batch One off tiled mortared stoves 70 Batch Section 5 Solid fuel heating systems 65 Supplementary information on solid fuel appliances Minimum efficiencies Minimum efficiencies for solid fuel appliances are published in the HETAS Official guide to approved solid fuel products and services and on the website www hetas co uk Manufacturers efficiency figures may be higher than those indicated and should be used where independently certified against the harmonised European Standards now in place Carbon emission factors Solid fuels include wood in various forms different types of coal and manufactured solid fuels and consequently there is a range of associated CO emission factors These factors are as important as appliance efficiency when selecting a boiler Table 19 shows the CO emissio
104. ltiple heating zone programmers or ii a single multi channel programmer 3 0 a Separate temperature Control valves and TRVs should be Temperature control of zones within the two port type to reduce flow rates control dwelling should be provided under part load of space using Differential pressures across control heating room thermostats or valves and TRVs should be limited to programmable room thermostats in all zones a room thermostat or programmable room thermostat in the main zone and individual radiator controls such as thermostatic radiator valves TRVs on all radiators in the other zones or iii a combination of i and li above ensure that the control valves vvork effectively and maintain shut off Section 6 Community heating systems 85 Table 26 Recommended minimum standards for control of systems within dwellings for community heating continued Community New systems Supplementary information heating 4 0 Temperature control of the Where instantaneous heat Temperature domestic hot water service exchangers are used the control control of should be provided by means valve should be selected to maintain domestic of two port control valves steady temperatures lt 5 C fora hot water either electrically operated or range of draw off rates and primary direct acting differential pressures To reduce the incidence of scaling the control valve should shut off the
105. mand for heat for systems only either space or water heating Section 7 Underfloor heating systems 93 Table 30 Recommended minimum standards for floor insulation and minimising distribution losses in wet and electric underfloor heating systems Underfloor New systems Supplementary heating information 1 0 Ground floors on earth or suspended The specifier Exposed ground floors in contact with outside air should should confirm floors be insulated to limit downward heat that insulation loss to not more than 10 W m resulting levels comply from thermal resistance of the applied with Approved floor finish Document L1A When heat output is not known but standards the floor finish is specified the extra amount of system thermalinsulation maybe calculated using the sum of the thermal resistance of the floor finish andthe thermal resistance of the underlying heated layer all multiplied by afactor of 10 Supplementary floor heating system thermal insulation may be supplied independently or added to the statutory insulation requirement Floor heating systems intended for cyclical operation or installed over unheated rooms should be separated from the structural floor by a layer of thermal insulation of at least 1 25 m K W thermal resistance and installed below the heated plane 2 0 Intermediate floors with heated rooms Thermal insulation Intermediate below should have a separating layer of party fl
106. ment at the time of writing See vvvvvv sbgi org uk for updates CORGI Domestic Manual Series e GID1 Essential gas safety GID2 Gas cookers and ranges GID3 Gas fires and space heaters GID5 Water heaters GID7 Central heating wet and dry CORGI Design Guides WCHI Wet central heating system design guide WAHT Warm air heating system design guide British Standards BS 5440 1 2008 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net 1st 2nd and 3rd family gases Specification for installation of gas appliances to chimneys and for maintenance of chimneys BS 5440 1 2009 Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net 1st 2nd and 3rd family gases Specification for the installation and maintenance of ventilation provision for gas appliances BS EN 12828 2003 Heating systems in buildings Design for water based heating systems BS EN 12831 2003 Heating systems in buildings Method for calculation of the design heat load BS EN 14336 2004 Heating systems in buildings Installation and commissioning of water based heating systems BS 6798 2009 Specification for installation and maintenance of gas fired boilers of rated input not exceeding 70 kW net BS 5871 1 2005 Specification for the installation and maintenance of gas fires convector heaters fire back boilers and decorative fuel effe
107. mpliance with Part L of the Building Regulations Section 9 Heat pump systems 107 Table 35 Recommended minimum standards for warm air heat pumps ground to air water to air and air to air systems continued Warmair Supplementary heatpumps New and replacement systems information 2 0 a Heat pump unit controls should Controls include i control of room air temperature if not provided externally ii control of outdoor fan operation for air to air units ili defrost control of external airside heat exchanger Tor air to air systems iv control for secondary heating if fitted on air to air systems v control of external vvater pump operation for ground to air and vvater to air systems vi protection for high vvater temperature protection for high refrigerant pressure vili protection for indoor air flovv failure ix protection for external air flow failure on air to air units x protection for water flow failure on ground to air and water to air systems Vli 108 Domestic Building Services Compliance Guide 2010 Edition Table 35 Recommended minimum standards for warm air heat pumps ground to air water to air and air to air systems Warm air Supplementary heatpumps New and replacement systems information 2 0 b External controls should include Controls i room thermostat if not continued provided internal to the heat pump to regulate
108. ms a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that SE 7 35 W m are exposed as part of the work or are otherwise accessible should be insulated as recommended 15mm 7 89 Wim above or to some lesser standard where 22mm 9 12 W m practical constraints dictate 26 mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54 mm 14 12 W m n assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC Guidance for achieving compliance with Part L of the Building Regulations Section 6 Community heating systems 89 Table 28 Recommended minimum standards forinsulation of internal and external pipework for community heating systems continued Standards for insulation of external distribution Supplementary information pipework a Community heating pipework should be Community heating pipevvork typically uses insulated to the standards defined in EN 253 pre insulated buried pipe systems Minimum for pre insulated pipes or to an equivalent insulation thicknesses are defined in European performance for conventionally insulated pipes 1 standards Where pipework Is run above ground the pipe insulation performance
109. ms continued Community heating New systems Supplementary information 2 0 Biofuels a No minimum standard but see supplementary information Biofuels can be used to provide heat from boller systems or as a fuel for CHP systems Consideration should be given to operation and maintenance of the plant to ensure a long life and to prevent a later replacement by a conventional fuel system Where a biofuel boiler is to be used in conjunction with conventionally fuelled heating boilers or electric heating a reasonable minimum proportion of the annual heat supply from biofuels would be 45 of the annual heat demand space domestic hot water and process heating Further guidance is provided in Low or zero carbon energy sources strategic guide ODPM 2006 3 0 Combined heat and power CHP a Where CHP is used in conjunction with boiler plant the control system should ensure that as far as is practicable the CHP plant operates as the lead heat source CHP capacity should be optimised to meet the required economic and environmental objectives A reasonable minimum proportion of the annual heat supply from CHP would be 45 of the annual heat demand space domestic and hot water heating To maximise the use of CHP heat over the year consideration should be given to the use of thermal storage to meet peaks especially in the early morning period The procedure given in SAP 2009
110. n factors for generic types of solid fuel recognised in SAP Table 19 CO emission factors for generic types of solid fuel Solid fuel Solid Fuel CO emission Notes factors kg CO kwh House Coal 0 301 Traditional British coal It burns with smoky flame Anthracite 0 318 A mineral fuel with high carbon content Burns very cleanly Manufactured smokeless 1 0 347 Mineral fuel usually made fuel from anthracite Wood logs 0 008 Renewable wood logs either purchased or from own land Wood pellets in bags 0 028 Mechanically compressed sawdust Bulk wood pellets 0 028 As above delivered in bulk Wood chips 0 009 Chipped wood processed onsite Dual fuel 0 206 A UK typical blend of logs and mineral fuel as burnt by a typical householder on a dual fuel stove Smoke Control Areas Within local authority Snoke Control Areas only anthracite or other Authorised Smokeless Fuels may be used unless the property is fitted with an Exempted Appliance An exempted appliance is one that has been approved by Parliamentary Statutory Instrument for installation in smoke control areas and prospective purchasers should check that the appliance and intended fuel are permitted A list of currently authorised fuels and exempted appliances is given on the web site www uksmokecontrolareas co Uk 66 Domestic Building Services Compliance Guide 2010 Edition Supplementary information on solid fuel appliances
111. n method EN 14785 2006 Residential space heating appliances fired by wood pellets Solid biofuels quality standards CEN TS 14588 2004 CEN TS 14774 1 2004 CEN TS 14774 2 2004 CEN TS 14774 3 2004 5 14775 2004 CEN TS 14778 1 2005 CEN TS 14778 2 2005 CEN TS 14779 2005 CEN TS 14780 2005 CEN TS 14918 2005 CEN TS 14961 2005 CEN TS 15103 2005 CEN TS 15148 2005 CEN TS 15149 1 2006 CEN TS 15149 2 2006 CEN TS 15150 2005 CEN TS 15210 1 2005 CEN TS 15234 2006 CEN TS 15289 2006 CEN TS 15290 2006 CEN TS 15296 2006 78 Domestic Building Services Compliance Guide 2010 Edition Section 6 Community heating systems 6 1 Scope of guidance This section provides guidance on the specification of community heating systems for dvvellings to meet relevant energy efficiency requirements in building regulations A community heating system is one that supplies heat to a number of dwellinos from a common heat source A system may heat a small block of flats or alarge number of buildings The guidance in this section applies to systems that supply 15 or more dwellings from a central boiler or from a low carbon source such as combined heat and power CHP biofuels heat pumps and solar panels e distribute heat from the central source using a wet radiator system although warm air heating and underfloor heating systems may also be used 6 2 New and existing community heating schemes The central heat source sh
112. ng Automatic e g electric or gas ignition is now available for certain designs and reduces energy usage at times of low demand allowing boiler interlock d Some boilers have both auto ignition and fire extinguishing features Link up systems It is possible to connect together two or more heating appliances with boilers at least one of which can be solid fuel fired to maximise flexibility and efficiency For example an oil or gas boiler could be combined with a wood burning stove with boiler sited in the living room This combination with wood burning appliances will reduce overall carbon emissions Both systems should be designed to appropriate installation codes 68 Domestic Building Services Compliance Guide 2010 Edition Aianiyap e ed o Aa 94e Siapjoyasnoy siy AAOj q se pauajaid ale oz Uey 19 e 1D SIayUNG INQ ni asnoy au JO juawadInbas ay uodn puadap IM a6eJ0 s ay 10 Z S y uol eoo j Ap pue JUSIUAAUOD e ul Jan JO s hnuenb abeso s Ion 4 pijos JOY p lJiD ds si Jo qnuenb uunuululuu ON jqeuose JO aHeJojs 10 peui PINOYS UOISIADIg e 02 p sn SI IA p BHeIO S ILL JO ay q Dauler ed D ds pasn q 70u pjnoys alain d X S SS A 1015 yy m 54 5 5 Huze y pue s 2np ui ul s S p duund Am e 5562 5 pajeas o Da
113. nsating controllers should be installed 92 Domestic Building Services Compliance Guide 2010 Edition Table 29 Recommended minimum standards for control of wet and electric underfloor heating systems continued Underfloor New systems Supplementary heating information 3 0 a Dwellings with a total usable floor area Facilities for Time control up to 150 m should be divided into automatic setback of VVetand at least tvvo zones vvith independent room temperature electric temperature control one of vvhich is to a lower level at underfloor assigned to the living area night or during heating b Dwellings with a total usable floor area unoccupied periods systems greater than 150 m should be provided are recommended with at least two space heating zones for both electricand each having separate on off timing vvarm vvater systems controls and temperature controls c For single storey open plan dvvellings in which the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate d Thick screed floor heating systems 565 mm should have facilities for automatic setback of room temperature to a lower level at night or during unoccupied periods 4 0 a Warm water floor heating system Boiler control controls should be interlocked with the Wet boiler and stored hot water temperature underfloor control to ensure that the boiler does not heating fire when there is no de
114. nstructions for appropriate treatment products and special requirements for individual appliance models Legionnaire s disease The control oflegionella bacteria in water systems Approved code of practice and guidance HSE Books Section 11 Solar water heating 117 Table 38 Recommended minimum standards for labelling commissioning and documentation for solar hot water systems Solar water Supplementary heating New and replacement systems information 1 0 a Allsolar collectors should have a In addition to the Labelling of visible and durable label displaying minimum provision for solar all information required according to labelling of hot water collectors and BS EN 12975 and including at least storage vessels labelling hot water the following with the following stores i name of manufacturer information is also ii collector type recommended ili serial number e Total netfluid content iv year of production Of secondary volume v gross area of collector normally heated by vl aperture area of collector each heat exchanger vli net absorber area of collector where present 1 0 viii maximum operation pressure litre ix stagnation temperature at 1000 VV m and 30 C ambient x volume of heat transfer fluid xi weight of empty solar collector b All hot water storage vessels should carry a label with the following information i manufacturer s name ii nominal ove
115. od GE should Vented cylinders which are not comply with BSEN1 2897 or W copper construction should ii be certified by the British be labelled as complying with Board of Ag remem the VVater the heat loss and heat exchanger Research Council or other l requirements of BS 1566 accredited body as complying vvith building regulations Due to the higher than normal Primary storage systems should Storage temperatures in primary meet the insulation requirements Stores itis very important that of sections 4 3 1 or 4 3 2 of they are vvell insulated the Hot VVater Association Performance specification for thermal stores 8 0 The ratio of solar heated water Collector area Is measured as Volume storage volume to collector area effective aperture or net absorber of solar should be asfollovvs area vvhichever is smaller pre heated i The dedicated solar storage Vvater volume Vs should be at a 5 0 25 litres or equivalent heat capacity per net square metre of the solar collector absorber area ii Alternatively Vs should bea volume or equivalent heat capacity which is equivalent to at least 80 of the daily hot water demand Vd as defined by SAP 2009 should be considered wherever possible 116 Domestic Building Services Compliance Guide 2010 Edition Table 37 Recommended minimum standards for indirect solar water heating continued Solarwater New and replacement systems Supplementary information
116. olid fuel heating systems 71 DY IV UP BY JOPUN Ue D plAO1d jenuewW Jasn 5 SI Cal 11402 6 P O ul uol e u uun2op azeLIdoudde y Bulpnioui 5 y o uonei do sil pue 15 5 JNOYM 1802 JO DOOAA JO AJAAI AP AY 150 y JO uoljeue dx in e AAIH p nous Jayjeysul y q Qu buu s p sn uu 1s s abeso s 10 OW aq ACUI YIIYM suon ninsul SF JOINJDC NUEWW 10 Joo v 0 21 10005 aq Wu Suol onulsul y ul pue suonejnB6 u bulpjing u s u uu Jinb J1 YIM s u l suol pnu ui si ni pejnueuui 9Y UTAN ul Hu UOISsILULUOD Due ohe le sul no SOULPIONIE Ul PAUOISSILIWWOD aq p nous lu uidinb pated aney Jo 7EY QI Wd SUOSIAA YANS vI3H v eloo pue sduind uoAASdid se 215 1Ju uudinb YIM D J 1SIDB J HD oym su lje sul Da uonejjersul y p ze Dosse UD J u1 Do uu 1s s 15 1972M Puluols ss ululo2 no Aue pinoys 2 ale oym suosi d Au JOY JO 4 lloq e JO 1501 y qo uon ldulo uO e Oe ul u n np i yu nb suo2 y pue ajeIs uul JO uol e nuun22e y DNP J O PND JOY By pue 5 1 PAN O Jop y JLAJ aPeW aq p nous olsiaoid Jaunyeynuew v Aq p nb JI pue uoljjiuu Jad sed 002 SP X ss upiEeU 1972M E201 SUIELU AY
117. ollectors into the system s dedicated storage ii minimise the accidental loss of stored energy by the solar DHW system whether originating from solar collectors cold intake or auxiliary heat sources ili ensure that hot water produced by back up auxiliary heat sources is not used when adequate grade solar pre heated water is available iv provide a means of control consistent with the solar system being hydraulically inherently secure against the adverse affects of excessive primary temperatures and pressures v where a separate DHW heating appliance is pre heated by a solar system control the appliance where possible such that no extra heat is added if the target temperature is already satisfied from the pre heat vessel vl inform the end user of the system correct function and performance at all times Section 11 Solar water heating 115 Table 37 Recommended minimum standards for indirect solar water heating continued Solarwater New and replacement systems Supplementary information heating 7 0 Vented copper hot water storage Vented copper hot water cylinders Solar pre vessels should comply with the should carry clear labelling on the heated heat loss and back up heating product such as a BSI Kitemark water heat exchanger requirements of registered firm status or reference storage BS 1566 1 2002 to an equivalent quality control Unvented hot water storage scheme uu pr
118. ollow the manufacturer s instructions and should comply with all relevant parts of the Building Regulations and for wet systems the Water Regulations Section 2 Gas fired space heating and hot water systems 15 sjuauundopparoidde yn Ao eodbuluue d ww uuO1 qe IPAV S00Z DT2 sBuljJg AAD ainparoid Juawssasse Bulsu puoo v o pinD 01 bulsu puo uou y JO ag ACW sJ JlOq YDIYM Ul s 2ue suunoi Jeuond 2x v bulUsilqe s 104 lnp oold panoidde oU 1NO S S S UH AAD 104 lnp oold 1U UUSS SSP UOHP E SU 49 10 Dulsu puoo v o plnD DTD L 4002 ANAS 94 9q O p uunsse aq pinoys s op l lloq e ul UaAIB ANIH Xnga3s 24 A 5 JOJ J UO SS UV UOGUED y n2Je2 o 600Z dee Q p sn ase Jey 10 S IDU IDIJJ 104 oi J uuuuns pue 1 ulAA 5 Uu 4 v bo 109 SD uio2 ynqp s mam je asegejeg Aue 19 109 4L 4002 ANAS WOH H 5 6002 8035 6002 6002475 021 Woy Uae aq PINOYS 5 016510 QD AOQP q pue e ul SDaUD y BOjaq 5 MaU dU ul p sn ey o p 2e d 1 Dua aas Y ul p sn jan u JO 10325 UOISSIU QD au JO Y Aq p ildninuu aq p nous adidas Mau y JO Aualdijjo au ni
119. ols in Table 31 Section 7 Underfloor heating systems 91 Table 29 Recommended minimum standards for control of wet and electric underfloor heating systems Underfloor New systems Supplementary heating information 1 0 a Allunderfloor heating systems whether System warm water or electrical types should be temperature fitted with controls to ensure safe system controls operating temperatures Wetand i A separate flow temperature high electric limit thermostat is required for vvarm underfloor vvater systems connected to any high heating water temperature heat supply i e systems operating at more than 60 C li Mixed systems containing both radiators and floor heating connected to a common high water temperature supply i e operating at more than 60 C should be provided with a separate means of reducing the water temperature to the floor heating system 2 0 a Each room should have its own Room temperature control device however temperature it may be acceptable for adjacent rooms control with similar function e g kitchens and Wet and utility rooms to share a thermostat or electric sensor underfloor b Bathrooms or en suites which share a heating heating circuit with an adjacent bedroom systems will provide heat only when the bedroom thermostat is activated In such cases the bathroom or en suite areas should be fitted with an independent towel rail or radiator c Weather compe
120. ombustion heaters inthe 77 heating requirement calculation 2 6 Gas fired fixed decorative fuel effect fires This type of appliance is intended for decorative purposes and therefore a minimum thermal efficiency is not specified Note that for the purposes of SAP 2009 the efficiency of decorative fuel effect fires is classed as 20 per cent for use in the space heating requirement calculation See Table 4a of SAP 2009 Gas fired decorative fires in new and existing dwellings should a meetthe product standards in BS EN 509 2000 Decorative fuel effect gas appliances and b number not more than one appliance per 100 m of dwelling floor area Section 2 Gas fired space heating and hot water systems 33 2 7 Gas fires for secondary space heating provided as part of a combined fire and back boiler unit Gas fires provided as a secondary heat source as part of a combined fire and back boiler unit when provided as a replacement system in existing dwellings should meet the following conditions a the appliance should be one of the types described in Table 8 b the efficiency gross calorific value of the appliance should be not less than the value in Table 8 for that type of appliance the appliance manufacturer s declaration of appliance performance should include the following words The efficiency of this appliance has been measured as specified in insert appropriate entry from Table 8 and the result after con
121. on oil fired heating systems is available in the following publications Energy Efficiency Best Practice in Housing publications see www oftec org CE29 Domestic heating by oil boiler systems CE51 Central heating system specifications CHeSS CE54 Whole house boiler sizing method for houses and flats OFTEC Technical Books 2 3 4 and 5 see www oftec org BS EN 12828 BS 5410 Part 1 Section 4 Electric heating systems 51 Section 4 Electric heating systems This section provides guidance on the specification of fixed electric heating systems for dwellings to meet relevant energy efficiency requirements in building regulations 4 1 Scope of guidance The guidance given in this section covers the following types of fixed electric heating systems electric boilers serving central heating systems electric warm air systems electric panel heaters e electric storage systems including integrated storage direct systems Portable plug in appliances are not covered by building regulations or by this guide 4 2 Electric boilers serving central heating systems Electric boilers serving wet central heating provided as new systems or replacement systems in dwellings should meet the minimum standards for a system circulation system preparation and commissioning in Table 13 b boiler interlock zoning and time control and temperature control of heating and hot water circuits in Table 14
122. ood chip and wood log fired independent boilers central heating systems using certain types of solid fuel appliances The guidance covers the following types of solid fuel coal anthracite manufactured smokeless fuel dual fuel wood logs wood pellets and wood chips 5 2 Solid fuel appliances for primary heating Solid fuel appliances provided as new systems and replacement systems in dwellings for primary heating should have an efficiency gross calorific value not less than specified in Table 18 for that category of appliance Table 18 Solid fuel appliance categories and recommended minimum 64 Domestic Building Services Compliance Guide 2010 Edition efficiencies Category Appliance description Minimum efficiency Feed gross calorific value B1 Simple open fire Inset 37 Batch B2 Open fire freestanding convector 47 Batch B3 Open fire inset convector 45 mineral fuels 43 wood luels C1 2 Open fire and boiler inset or 50 Batch freestanding D1 2 3 Open fire high output boiler 63 Batch trapezium and rectangular grates D4 Open fire high output boiler 63 Batch rectangle E 1 Dry room heater often knovvn as 1 6596 Batch dry stove Automatic E2 Dry room heater logs only 65 Batch E3 Dry room heater multi fuel 65 Batch E4 Dry room heater pellet stove 65 part load Auto 70 nominal load F Room heater with boiler 67 mineral fue
123. oors is floors with of system thermal insulation to comply essential because heated rooms with either 1b above or BS EN1264 the floor or ceiling below wet Part 4 where the minimum thermal is directly coupled systems resistance is given as not less than to the heating R 0 75 m K VV elements 3 0 Intermediate floors with heated rooms Intermediate below should either comply with 1 0 b floors with above or have a separating layer of heated rooms belovv electric systems system thermal insulation vvhere the minimum thermal resistance is not less than R 0 5 m K VV 94 Domestic Building Services Compliance Guide 2010 Edition Table 30 Recommended minimum standards for floor insulation and minimising distribution losses in wet and electric underfloor heating systems continued Underfloor New systems Supplementary heating information 4 0 Underfloor heating distribution boards System design or warm water distribution manifolds to minimise should be located centrally between the distribution rooms being heated thus minimising losses the length of interconnecting services Service pipes carrying hot water to more distant rooms should be insulated or routed through conduits to reduce distribution losses and the risk of overheating the room or floor finish 5 0 Commissioning warm water floor British Standards System heating systems should be carried out BS 7593 2006 commissioning in acco
124. ould comply with the requirements in the Non domestic building services compliance guide except where specified in this section Guidance is provided for two scenarios connecting dwellings to anew community heating scheme connecting dwellings to an existing community heating scheme Connecting dwellings to anew community heating scheme New community heating systems for both new and existing dwellings should meet the minimum standards for a energy efficiency in Table 24 b low carbon heat sources in Table 25 c system control in Table 26 Section 6 Community heating systems 79 d hotwater production storage and treatment heat metering and commissioning in Table 27 e insulation of pipework in Table 28 Connecting dwellings to an existing community heating scheme When existing community heating systems are connected to new or existing dvvellings the minimum requirements are a if the existing community heating system is in need of replacement or improvement a study should be carried out to assess the economic and environmental benefits of a range of options including the use of CHP and other low carbon heat sources especially where individual heating systems are being considered as an alternative to continuing with the community heating system b replacement boilers should meet the minimum standards for boiler efficiency in the Non domestic building services compliance guide available from www planningportal gov
125. ovision may need to be made to labelled accordingly as follows protect central heating and hot water i Primary circulation pipes for heating and hot 1 pipevvork in unheated areas against vvater circuits should be insulated vvherever freezing Guldance is avallable in they pass outside the heated living space or 55422 2009 Method for specifying through voids which communicate with and thermal insulating materials for pipes are ventilated from unheated spaces tanks vessels ductwork and equipment ii Primary circulation pipes for domestic hot operating within the temperature range water circuits should be insulated throughout 40 C to 700 C their length subject only to practical BRE Report No 262 Thermal insulation constraints imposed by the need to penetrate avoiding risks 2002 Edition joists and other structural elements iii All pipes connected to hot water storage vessels including the vent pipe should be insulated for at least 1 metre from their points of connection to the cylinder or they should be insulated up to the point where they become concealed Where insulation is labelled as complying with this guide it must not exceed the following heat loss levels iv If secondary circulation is used all pipes kept Pipe outside Maximum hot by that circulation should be insulated diameter heat loss Standards for internal pipework in 8 mm 7 06 W m replacement syste
126. pace heating systems heating zones zones b Aseparate hot water zone is not required if the hot water is produced instantaneously such as with a combination boiler Section 2 Gas fired space heating and hot water systems 23 Table 2 Recommended minimum standards for control of gas fired wet central heating systems continued Gas fired Replacement wetheating New systems systems 4 0 a Time control of space and water heating a Asfor new Time control should be provided by systems unless of space i afull programmer with separate timing only the hot water and water to each circuit or cylinder is being heating two or more separate timers providing replaced and timing control to each circuit or separate time iii programmable room thermostat s to control for the the heating circuit s with separate hot water circuit timing of the hot water circuit is not present b For dwellings with a total usable floor area In this case it is greater than 150 m timing of the separate acceptable to space heating zones can be achieved by have a single i multiple heating zone programmers or timing control ii a single multi channel programmer or for both space ili programmable room thermostats or heating and hot IV separate timers to each circuit or water v acombination of iii and iv above c Where the hot water is produced instantaneously such as with a combination boiler time control is only
127. pliance The aim is to discourage replacement of an existing appliance by a significantly less carbon efficient one The minimum requirements are Replacement not involving fuel or energy switch Where the primary heating appliance is replaced by one using the same fuel or energy supply the seasonal efficiency of the new equipment should be a as Stated in the relevant fuel based section of this guide and b notworse than two percentage points lower than the seasonal efficiency of the controlled service being replaced If the efficiency of the appliance to be replaced is not known efficiency values may be taken from Table 4a or 4b of SAP 2009 Replacement involving fuel or energy switch If the new heating appliance uses a different fuel the efficiency of the new service should be multiplied by the ratio of the CO emission factor of the fuel used in the service being replaced to that of the fuel used in the new service to obtain the carbon equivalent efficiency The checks described in paragraphs a and b above should then be made The CO emission factors should be taken from Table 12 of SAP 2009 1 The Boiler Efficiency Database is at www sedbuk com Note The database will give separate winter and summer i e hot water efficiencies for boilers which SAP 2009 at www bre co uk sap2009 uses to calculate carbon dioxide emission rates for dwellings To avoid confusion with a prospective EuP Directive labelling scheme the database
128. pliances which have been converted from another fuel for example from solid fuel to oil Oil fired vaporising appliances provided as new systems or replacement systems should meet the minimum standards for controls in Table 12 Table 12 Recommended minimum standards for control of continually burning oil fired vaporising appliances New and replacement Supplementary Appliance type systems information a Manually operated The integral manual controls 1 Information about the appliance e g room as provided by appliance use of controls should heater manufacturer be clearly stated in b Electrically operated The integral or remote ufacturers modulating appliance thermostatic controls as Hu e g room heater provided or specified by the appliance manufacturer Automatic ON OFF vaporising appliances c Room heater providing The integral thermostatic secondary room space controls as provided by heating appliance manufacturer d Room heater providing The integral or remote domestic hot water amp thermostatic controls as secondary room space provided or specified by the heating appliance manufacturer 3 5 Oil fired fixed independent space heating appliances This section provides guidance on the specification of oil fired fixed independent space heating appliances for dwellings Fixed independent space heating appliances may be installed as a means of primary or secondary space he
129. ppe aq p nous piepue1s leludoidde 10 uonpoll ds S im eynupul ay Bun uu 9 EDSOUII PUP UOISOJIOD D UIQUIOD 4o iqluul lu ul e 1 1872M 221 2 y yu uu e 1 SHOLIYU l s uu EDILUBYD JO sn p 15 5 y JO DuuuISuu Bung q 4 EAA pue y Aq p Jlonuo2 aq ULI Je2s uur lloq Mau e Sulleqsul 1 uonesed usd ya pying p usnil pue p up p lubnolou uu s s qunuulului e se pinoys SIOJIGIYU swiaysAs Mau 10 SV e qpplDnoussuu s s 6100 7 e 07 uoneuuo ul Azeyu ul yddns sui s s yu uu 2ed tu swia shs M N 1 AA swia sAs Bune u le nu JOM 1 104 Buluolssiululo pue uonesedaid uu 1s s apelos 197eM 70y l 3s4s uN 10 SPAEPUL S 6 lqEL Section 3 Oil fired space heating and hot water systems 41 T UIDU pue 5 Dulnssi v Aq paulejas s do e pue s sod nd uon dsul lozuo Hulpying D4O2 1 10 u De JO Japjoyasnoy ay UM Met SI UO p lduloo ydea do v suoneyn y Dumping y YIM 2uel duuo2 u Ul S S pue aduerdde ay qo uoneiado 142121 y 104 Ayessadau p uu p ale YIYM pue SyJOM Hulpsoda pue buns l Ag 1MO 25 SI 5S PAUOISSILILUOD pue pay ejsul u q aney suu s s p y z pue sadu
130. rall capacity in litres ili dedicated solar capacity in litres iv standing heat loss in kWh day v type of vessel vi back up heating heat exchanger performance in kW where present solar heating heat exchanger performance in kW Vil The type fluid content maximum pressure and surface area of all heat exchangers 118 Domestic Building Services Compliance Guide 2010 Edition Table 38 Recommended minimum standards for labelling commissioning and documentation for solar hot water systems continued correctly installed and to record key safety and operational features b Asa minimum the commissioning certificate should record the follovving details of the solar system vi vii net or aperture area of solar collector minimum ambient temperature vvithout freeze damage to components location of device and method for controlling over pressure location of the electrical isolating svvitch type of circulation fluid circulation rate of collector circuit location of device for protecting against overheating of solar heated water Solar water Supplementary heating New and replacement systems information 2 0 a Asigned and dated commissioning A signed commissioning Commissioning certificate should be completed to certificate certifying confirm the equipment has been that the equipment Is safe legal and fit for its intended purpose should be handed over to the
131. rdance with BS EN 1264 Part 4 Code of practice and corrosion Even where plastic tubes contain oxygen for treatment of protection gas barriers the control of corrosion in water in domestic mixed product heating systems must be hot water central Control of addressed carefully heating systems oxidation After testing and flushing with clean mhibtor should biofilm scale and water the system circulating fluid o g ES sludge inwarm should be treated with a suitable Ss 7 5 75757 uildCert approved vvater heating corrosion inhibitor approved by the tube systems manufacturer and complying with Note should also be BS 7593 2006 or DIN 4725 6 and made of advice in applied strictly in accordance with the the manufacturer s additive manufacturer s instructions instructions Section 7 Underfloor heating systems 95 Table 31 Recommended minimum standards for construction and control of electric underfloor heating systems Underfloor heating New systems Supplementary information Electric 1 0 Electric cable underfloor heating Other areas storage Construction low tariff night energy storage should be systems vvith systems should have a 65mm assigned as low individual minimum thickness screed for tariff heating room or correct operation cables only programmable Principal rooms containing 80 subject to heat thermostats floor area should be assigned requirements and low tariff to low tariff heating cables
132. required for space heating zones 5 0 a Separate temperature control of zones a Asfor new Temperature within the dwelling should be provided systems control using Of space room thermostats or programmable heating room thermostats in all zones and ii individual radiator controls such as thermostatic radiator valves TRVs on all radiators other than in reference rooms with a thermostat and bathrooms 24 Domestic Building Services Compliance Guide 2010 Edition Table 2 Recommended minimum standards for control of gas fired wet central heating systems continued Gas fired Replacement wetheating New systems systems 6 0 a Domestic hot water systems should be a Asfor new Temperature provided with a cylinder thermostat and a systems control of zone valve or three port valve to control the for planned domestic temperature of stored hot water replacement hot water b In dwellings with a total floor area greater of hot water than 150 m it would be reasonable to cylinders on all provide more than one hot water circuit fully pumped each with separate timing and temperature installations controls This can be achieved by and on gravity i multiple heating zone programmers or circulation ii a single multi channel programmer or installations ili separate timers to each circuit b In exceptional c Non electric hot water controllers should circumstances not be used Also in some circumstances such as
133. rformance of an electric heat pump over the season t is the ratio of the heat delivered and the total eneroy supplied over the season 9 3 Warm water and hot water heat pumps Electrically driven heat pumps used as the heat generator in e g underfloor warm air and medium temperature radiator heating systems should a have a coefficient of performance not less than 2 28 when used for space heating b have a coefficient of performance not less than 2 0 when used for heating domestic hot water c have a seasonal performance factor not worse than the minimum required by BS EN 15450 Table C1 for new build and Table C2 for existing build d meet the minimum standards for supply temperature wet system radiator efficiency installation and commissioning hot water and controls in Table 34 for warm water and hot water heat pumps e meet the minimum standards for installation and controls in Table 35 for warm air heat pumps 8 CoP to be measured according to procedures in BS EN 14511 4 2007 102 Domestic Building Services Compliance Guide 2010 Edition Table 34 Recommended minimum standards for warm water and hot water heat pumps ground to water water to water and air to water systems Warm and hot water Supplementary heat pumps New and replacement systems information 1 0 Underfloor heating Section 7 of this guide on Supply a Supply water temperatures to the underfloor heating water underfloor heating system
134. ry ventilation systems 2 0 a The heat recovery efficiency of balanced Heat mechanical ventilation systems recovery incorporating heat recovery should not be efficiency worse than 70 3 0 a Intermittent mechanical extract ventilation British Standards Controls systems should be operated by local manual BS EN 15232 2007 switches or automatically by a presence Energy sensor performance b Allother mechanical ventilation systems of buildings should have manual or automatic control of 1 Impact of building the boost facility automation controls and building management Section 9 Heat pump systems 99 Section 9 Heat pump systems 9 1 Scope of guidance This section provides guidance on the specification of heat pump systems in dwellinos for the provision of space heating and domestic hot water to meet relevant eneroy efficiency requirements in building regulations A heat pump is a device which takes heat energy from a low temperature source and upgrades it to a higher temperature at which it can be usefully employed for heating or hot water Heat pumps may supply all or part of the heating load The guidance in this section applies to the types of electrically driven heat pump in Table 33 Table 33 Heat pump technologies Warm water and hotvvater Warm air Heat pump type systems systems Ground source systems GSHP Ground to Ground to Heat energy Is extracted from the ground u
135. s 43 wood fuels 1 2 Open fire and boiler inset or 50 Batch freestanding D1 D2 D3 Open fire high output boiler 63 Batch trapezium and rectangular grates D4 Open fire high output boiler 63 Batch rectangle E1 Dry room heater often known as 65 Batch dry stove Automatic E2 Dry room heater logs only 65 Batch E3 Dry room heater multi fuel 65 Batch E4 Dry room heater pellet stove 65 part load Auto 70 nominal load F Room heater with boiler 67 mineral fuels Batch and logs Automatic 70 wood pellets part load 75 wood pellets nominal load G1 Cooker without boiler not 65 mineral fuels Batch exceeding 3 5 kW 55 wood fuels G2 Cooker with heating boiler 65 mineral fuels Batch exceeding 3 5 kW 60 wood fuels J2 Independent boiler batch fed 75 Batch wood logs only J3 Independent boiler batch fed 65 mineral fuels Batch multi fuel 75 wood logs J4 Independent boiler anthracite 70 up to 20 5 kW Automatic 75 above 20 5 kW J5 Independent boiler wood pellets 75 nominal load Automatic chips 70 part load Slow heat release appliances 65 Batch One off tiled mortared stoves 70 Batch 12 Domestic Building Services Compliance Guide 2010 Edition Summary of recommended minimum energy efficiency standards for building services continued Building service Community heating systems Standard2 Seasonal efficiency Bollers See Non domestic building services compl
136. s4s u ul eld q swia sAs M N 6une u suu 1s s Bunp q eJ11u 3 La 01 U0 JO spiepue s papuawwo y 01 4 1 44 Domestic Building Services Compliance Guide 2010 Edition 19 emM 0y pue Huljeay deds YO 104 onuo Buw lbuls e aey o qe1d 22e s 1 SE SIY U 1u s id JOU S PND Jop JOY BY 104 lonuo 5 pue Bul q 51 Japul AD Ja eM OY ay juo ss un suu s s Mau 101 SY s uoz Huljeay adeds JO AJUO SI O4UOD BWI d lloq UOIJEUIQWOD e UU se 215 AJSNOBUE UE SU PSDNPOA si 1942M JOY BY J UAA A pue III JO uonPulqulo2 IIIA JO PND 2 O SBI 5 IA JO S1E1SOUL U1 WOOL ajqewwWelbold IA Jo jauUeYd yjNWW ajHulse A Jo si uuuue1Boid uoz Buljyeay di nuu Al Aq p A lu2e aq ued s uoz bunp u adeds ajesedas ay JO Dun Lu OG ueu ease 10011 qesn 270 e UNA S U AMD 104 HINDAD 1J eAA1 OU ay JO Hulu ayesedas YPM 5 bunp u ay o s e1souuj u qeuuuue1Boid il JO HNDI 2 01 UO2 bululn BuipiAoid sioun a eIedas 10 OM II n z ype o Dun ayesedas YM J uuuueJBoid e 7 aq p nous Bune u 1942m pue 2eds 40 2 au 6une u Ja eM pue deds yo O1 U0 uu L
137. sAs Bune u Lann pailj seb 10 Buluolssiululo pue uonesedaid 5 5 5 19 eM JOY uone n24D Wia SAs u r LH 10 spiepue suinuululuu lqEL 22 Domestic Building Services Compliance Guide 2010 Edition Table 2 Recommended minimum standards for control of gas fired wet central heating systems Gas fired Replacement vvet heating New systems systems 1 0 a Boiler based systems should have a boiler a Asfor new Boiler controlinterlock in which controls are wired systems interlock so that when there is no demand for either space heating or hot water the boiler and pump are switched off b The use of thermostatic radiator valves TRVs alone does not provide interlock 2 0 a Dwellings with atotalusablefloorareaup a Asfor new Space to 150 m should be divided into at least systems heating two space heating zones with independent zones temperature control one of which is assigned to the living area b Dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls For single storey open plan dwellings in which the living area is greater than 70 of the total floor area sub zoning of temperature control is not appropriate 3 0 a All dwellings should have a separate hot a Asfor new Water water zone in addition to s
138. se system online pLogin asp or by writing to the Office of Public Sector Information Information Policy Team Kew Richmond Surrey TW9 4DU e mail Official Publishing nationalarchives gsi gov uk If you require this publication in an alternative format please email alternativeformats communities gsi gov uk Communities and Local Government Publications Tel 030 0123 1124 Fax 030 0123 1125 Email product communities gsi gov uk Online via the Communities and Local Government website www communities gov uk Contents Section 1 Section 2 Section 3 Section 4 Section 5 Introduction 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 Scope Innovative systems European Directives Status of guide How to use this guide Key terms Replacement of primary heating appliances Energy efficiency standards for compliance with building regulations summary table Gas fired space heating and hot water systems 2 1 2 2 2 3 2 4 2 5 2 6 2 7 Scope of guidance Gas fired wet central heating systems Gas fired range cookers with integral central heating boiler Gas fired warm air heating Gas fired fixed independent space heating appliances Gas fired fixed decorative fuel effect fires Gas fires for secondary space heating provided as part of a combined fire and back boiler unit Oil fired space heating and hot water systems 3 1 3 2 3 3 3 4 3 5 Scope of guidance Oil fired wet central heating systems Oil fired range cook
139. secondary circulation is used all pipes kept Pipe outside Maximum hot by that circulation should be insulated diameter heat loss Replacement systems amp mm 7 06 Wim a Whenever a boiler or hot water storage vessel 10mm 7 23 Wim is replaced in an existing system any pipes that mm 7 35 Wie are exposed as part of the vvork or are othervvise accessible should be insulated as recommended 75 mm 7 89 Wim above or to some lesser standard where 22mm 9 12 Wim practical constraints dictate 28mm 10 07 Wim 35mm 11 08 Wim 42mm 12 19 W m 54 mm 14 12 Wim n assessing the thickness of insulation required standardised conditions should be assumed in all compliance calculations based on a horizontal pipe at 60 C in still air at 15 C Further guidance on converting heat loss limits to insulation thickness for specific thermal conductivities is available in TIMSA HVAC guidance for achieving compliance with Part L of the Building Regulations 26 Domestic Building Services Compliance Guide 2010 Edition 2 3 Gas fired range cookers with integral central heating boiler Note This section does not apply to appliances with fully independent boiler and cooker parts within a shared case For these the standards for the boiler are as set out in Section 2 2 Gas fired range cookers with integral central heating boiler within a single appliance body provided as new systems or replacement systems should meet
140. sing closed water air pipe loops buried horizontally in trenches or in vertical boreholes that are connected back to the GSHP The fluid circulating in the closed loop is normally a water propylene glycol antifreeze mixture or accepted equivalent but some direct expansion GSHPs use refrigerant Open loops may also be used to collect water from an aquifer and discharge via a separate aquifer downstream of the water table flow systems of this type normally require permits from the Environment Agency Heat extracted from the ground may be supplied to a dwelling either by a water based heating system ground to water heat pump or by an air distribution system ground to air heat pump 100 Domestic Building Services Compliance Guide 2010 Edition Table 33 Heat pump technologies continued Warm water and hotvvater Warm air Heat pump type systems systems Water source systems WSHP Water to Water to air Heat energy is extracted indirectly from a water source water using closed pipe loops as a heat exchanger The closed loop is connected back to the water to water heat pump The water source may be a lake pond or river or other stable water source The fluid circulating in the closed loop will normally be water but a water propylene glycol or accepted equivalent antifreeze mixture may be used depending on operating temperatures Open loops may also be used subject to the permits being obtained from the
141. sulation should be upgraded in line with insulated up to the point where they these minimum provisions where significant become concealed work such as change of solar storage is c Pipes should be insulated with carried out materials labelled as complying A tully filled or drainback solar hot water with the Domestic building services 1 system can have a pipe service temperature compliance guide and in line with of 150 C Therefore an insulation material the guidance in the TIMSA guide should be specified to accommodate this temperature An EPDM based rubber would normally be a minimum requirement for such an application Any insulation specified must be better than 0 044 Wim K at 40 C mean and the insulation diameter must be 87 of the pipe diameter Where insulation is labelled as complying with this guide it must not exceed the following heat loss values Pipe outside Maximum heat diameter loss 8 mm 7 06 W m 10 mm 7 23 Wim 12 mm 7 35 Wim 15 mm 7 89 Wim 22 mm 9 12 Wim 28 mm 10 07 W m 35 mm 11 08 W m 42 mm 12 19 W m 54 mm 14 12 Wim 120 Domestic Building Services Compliance Guide 2010 Edition Table 39 Recommended minimum standards for insulation of pipework in solar hotvvater systems continued Nevv and replacement systems Supplementary information Further guldance on converting heat loss limits to thicknesses of insulation for specific thermal conductivit
142. systems including direct systems 112 Domestic Building Services Compliance Guide 2010 Edition Table 37 Recommended minimum standards for indirect solar water heating certification and thermal performance and for reporting and identification according to BS EN 12975 Solarwater New and replacement systems Supplementary information heating 1 0 a No minimum provision Solar collectors should be sited Allowance in unshaded locations wherever for collector possible Where this is unavoidable shading or in cases of significant or heavy shading or significant variance to the optimum orientation and tilt i e normal pitch roofs facing between SE and SW then an allowance for the loss of performance should be made when sizing the collector area according to the factors indicated in SAP 2009 Appendix H 2 0 a Collectors should be Copies of the full test report should Solar independently certified to comply be made available upon request collector with all required tests for safety collector whichever is the higher 3 0 a The transfer fluid in the collector 1 In secondary systems measures to Primary primary loop should be chosen reduce the formation of limescale circuit fluid so as not to deposit limescale should be considered so that sludge ice or other solids that performance is not significantly could either restrict circulation or affected impair the rate of heat transfer within the absorber
143. the following standards a Theappliance should have two independently controlled burners one for the cooking function and one for the boiler b The integral boiler should have a seasonal efficiency SEDBUK 2005 or SEDBUK 2009 in excess of 75 The manufacturer s declaration of appliance performance and SEDBUK value should include the following words i Seasonal efficiency SEDBUK xx 96 ii Case heat emission value yy kW iii Heat transfer to water at full load zz kW iv The values are used in the UK Government s Standard Assessment Procedure SAP for the energy rating of dwellings The test data from which the values have been calculated has been certified by insert name and or identification of Notified body See www rangeefficiency org uK If the integral boiler is a condensing boiler the declaration should make clear whether the efficiency has been calculated in accordance with SEDBUK 2005 or SEDBUK 2009 If it does not then SEDBUK 2005 must be assumed The integral boiler should meet the minimum standards for system circulation hot water storage system preparation commissioning controls and insulation in Tables 1 2 and 3 gas fired central heating systems 2 4 Gas fired warm air heating Gas fired warm air heating systems provided as new systems and replacement systems should meet the minimum standards for a efficiency and installation in Table 4 and b zoning time control and temperature contro
144. the space temperature and interlocked with the heat pump unit operation ii timer to optimise operation of the heat pump Supplementary information further guidance on heat pumps EU Directives for machinery safety low voltage pressure equipment electromagnetic compatibility SAP 2009 Defra Carbon Trust Energy Technology List Heat Pumps BS EN 14511 Airconditioning liquid chilling packages and heat pumps with electrical driven compressors for space heating and cooling Parts 1 4 BS EN 15450 Heating systems in buildings Design of heat pump heating systems BS EN 15316 Heating systems in buildings Method for calculation of system energy requirements and system efficiencies Part 4 2 Space heating generation systems heat pump systems ISO 13256 Water source heat pumps testing and rating for performance Part 1 Water to air and brine to air heat pumps and Part 2 Water to water and brine to water heat pumps CE 82 Energy Efficiency Best Practice in Housing Domestic ground source heat pumps design and installation of closed loop systems BS EN 378 Specification for refrigerating systems and heat pumps Safety and environmental requirements and system efficiencies Part 4 2 Space heating generation systems heat pump systems Microgeneration Certification Scheme MIS 3007 Product certification scheme requirements heat pumps
145. tion covers indirect solar systems with a collector area of less than 20 m and solar heated water storage of less than 440 litres t does not cover direct solar systems or systems intended to contribute exclusively to space heating or systems providing heat exclusively to heat swimming pools It should be used in conjunction with the guidance on water heating contained in the fuel based sections of this guide 11 2 Indirect systems ndirect solar heating systems installed as nevv systems and replacement systems should meet the minimum standards for a collector certification identification and testing collector primary loop transfer fluid circulation pump power heat exchanger sizing system control solar pre heated water storage and system preparation in Table 37 b system labelling and commissioning in Table 38 c insulating pipes in a solar primary system in Table 39 Supplementary information VVhen vvork is carried out on an existing indirect solar hot vvater system it is recommended that the system controls and insulation should be upgraded in line vvith the standards for new and replacement systems 9 TheMicrogeneration Certification Scheme Standard MIS3001 Issue 1 7 January 2010 gives guidance on solar heating systems with a dedicated solar volume that is below the minimum recommended for indirect systems SAP 2009 Appendix H sets out rules for estimating the annual energy performance of solar heating
146. tions isin italic font with a grey background In some cases there are links to best practice guidance that goes beyond the recommended minimum requirements Key terms are defined immediately below and at appropriate points throughout the guide They are shown in italic bold font 1 6 Key terms Fixed building services means any part of or any controls associated with a fixed internal or external lighting systems but does not include emergency escape lighting or specialist process lighting or b fixed systems for heating hot water air conditioning or mechanical ventilation 8 Domestic Building Services Compliance Guide 2010 Edition New system means fixed building services installed in a new building or for the first time in an existing building Replacement system means fixed building services installed as a replacement for a system in an existing building Seasonal efficiency means the annual efficiency value used by SAP for a heating appliance For gas LPG and oil boilers that have been tested for efficiency this is SEDBUK 1 7 Replacement of primary heatino appliances When replacing an existing appliance the efficiency of the new appliance should not be significantly less than the efficiency of the appliance being replaced If the replacement involves a fuel switch then the relative carbon emissions associated with the new and existing fuels should be considered when assessing the reasonableness of the proposed new ap
147. u uuss sse uonejjesul Joo Buisu puo2 y o aPIND 212 ay ul aduepinb ay SulMollo Aq payesjsuowap aq ued Aualdiya d loq 10 5 Y YPM aouel dwod sbul jamp Huljsixe ul j 6002 ANAIS Aq payed se 88 JO 06 uey Ssal JOU aq p nous ou DiH 002 ANAGAS J lloq ul q adj Dulsu puo dVS UI p SsIA J1 u q seu U D LN US B1 u 10 y JO aq Pinoys s lloq ay e ou n1jJj3 pou Uu ngq3s ql I nje s u uu 35e d u si liog 01 uoneuuo ul Aze u ul yddns sui s s uUaWwade day Suu sS SAA N B6une u suu s s 1 AA 40 1 1551 2 pue uoneued 1d uu 1s s apelos 19 eM JOY uone n24D Wia SAs 10 5 6 lqEL Section 3 Oil fired space heating and hot water systems 37 uoe paduund An O 2 aq p nous uolle n2JiD u Bu did uuinuululuu UO suon n nsul S JaINJDeyNUeW y pue p piAoid aq pynoys A PA ssedAq ue ssedAq e JO uol je je sui S APE suol onu1sul sJaunpefNueW J lOq y 1 0 uole n21D ANAE IUU S ullAA 54 5 5 nsix p duund p nous SND ae si jloq U UAA 0 Aipuud 1972m JOY 215 ui s
148. u aq JOU p nous saduel dde oni pijos 2 Ul HND SIY 1oj p sn ag eul 5 5 0 0150 e p AAo loj aq p nous suojeipes Jea yeay Jo Buluonisod pue JIeI J AAO WOOJYZEQ u AJUOLULUOD SI SIU D Q ai pue ulz s ay UO suononua suisu pejnueuu u q buu pinouus v OU 1624 edissip o YP U SOU aq Pinoys ui s s e u e auinbas suu s s Bul e u Je u 2 pilos ISON paduund Ayn ajqeyiene s 32o u lui J9 lOq 01 6une u uoneuuoyul A1ejyu ui ddns swa sAs 1u ui 3e d 1 pue M N l n pilos Bune s u je1 UAad q ni pilos 104 Buiuoissituuio3 pue uolesedaid uu 1s s 104 aHe10 s Ian uODEIDOUD 5 5 104 spiepue s uinuuluiuu papuawwo y 07 4 1 Section 5 Solid fuel heating systems 69 S1 U JAJEM DE10 p so 2 J0 uone3Ijip d iddns IeM 682 1 58 s sodl ndl ons uuop 104 SIUN uoneulquloo DE1O S JaJeM JOY Joo JOJ Uonp LD 1961 861 g SPOYJOW ISI pue sjuaadinbay si pul O ddo p u A u do s sodind SI PUIO Papui Oh 2002 99S S9 sp4epue s 5148 nDo ozen MMM WIOJ DEO U MOD L JOJ lQP IPAP 51 UORP L D S DP 40 PULM U YMH 9 1 p l nsul M ae S 10 S 150 JUCLIOALUI H A SI q s an eJ duu abesojs u
149. version to gross using the appropriate factor from Table E4 of SAP 2009 is x The test data from which it has been calculated has been certified by insert name and or identification of Notified Body The efficiency value may be used in the UK Government s Standard Assessment Procedure SAP for energy rating of dwellings Table 8 Minimum appliance efficiencies for gas fires in a combined fire and back boiler unit Minimum efficiency Gross calorific value British Standard designation appliance type Naturalgas LPG Inset live fuel effect 45 46 BS 7977 2 2003 Specification for safety and rational use of energy of domestic gas appliances Combined appliances Gas fire back boiler All types except inset live fuel effect 63 64 BS 7977 2 2003 Specification for safety and rational use of energy of domestic gas appliances Combined appliances Gas fire back boiler 34 Domestic Building Services Compliance Guide 2010 Edition Table 8 Minimum appliance efficiencies for gas fires in a combined fire and back boiler unit continued Supplementary information further guidance on gas fired heating Energy Efficiency Best Practice in Housing publications CE30 Domestic heating by gas boiler systems e CE51 Central heating system specifications CHeSS 54 Whole house boiler sizing method for houses and flats SBGI publications on gas boilers and gas fires under develop
150. without water heating Gas fired warm air heating without hot water New and replacement systems 1 0 a Controls external to heater time switch programmer and room Time and thermostat or programmable room thermostat or temperature b controls integrated in the heater time switch programmer and control room temperature sensor linked to heater firing and fan speed control 2 0 a New dwellings with a total usable floor area up to 150 m should Zoning be divided into at least two space heating zones with independent temperature controls one of which is assigned to the living area b New dwellings with a total usable floor area greater than 150 m should be provided with at least two space heating zones each having separate timing and temperature controls Timing of the separate space heating zones can be achieved by i multiple heating zone programmers or ii a single multi channel programmer or ili programmable room thermostats or iv separate timers to each circuit or v a combination of ili and iv above The provisions for zoning for replacement systems in existing dwellings should be as for new dwellings where practical 30 Domestic Building Services Compliance Guide 2010 Edition Table 5b Recommended minimum standards for control of gas fired warm air heating vvith vvater heating Gas fired warm air heating with hot water New and replacement systems 1 0 a Pumped prim
151. ystem circulators 14 1 Scope of guidance This section provides guidance on the specification of stand alone glandless heating system circulators to meet relevant energy efficiency requirements in building regulations The guidance does not apply to circulators supplied as integrated units within the casing of boilers 14 2 Circulators Heating system circulators provided as part of new systems or replacement systems in dwellings should meet the minimum standards for energy efficiency in Table 41 Table 41 Recommended minimum standards for stand alone glandless heating system circulators New and replacement systems Supplementary information a Stand alone glandless circulators should be Further information and labelled for energy efficiency in accordance guidance including a list of with the Europump Labelling Scheme and have approved glandless domestic a rating in the range A to G circulators is available at www bpma org UK The EuP Directive will introduce arequirement for all circulators placed on the market from January 2013 to have a minimum Energy Efficiency Index EEI initially equivalent to an A rating under the Furopump Labelling Scheme and later equivalent to an A rating To meet these standards over the next three to five years the circulator industry will have to switch from using induction motors to permanent magnet motors
152. ystems using condensing boilers is not exceeded e To achieve high boiler efficiency Boilers should be selected return temperatures from radiator to comply vvith the boiler circuits should be selected lower efficiency requirements of than 50 C the Non domestic building Where instantaneous plate heat services compliance guide exchangers are used to produce hot water in individual dwellings the return temperature selected should be less than 40 C e Where hot water cylinders are used the coil size should be such as to require a flow rate that results in a nominal return temperature of less than 40 C whilst meeting the required heat up time e Where hot water is produced centrally e g in each block of dwellings return temperatures lower than 40 C should be achieved 2 0 Controls for boilers should Setting occupation times is not Controlling meet the requirements of generally possible for a group of the the Non domestic building dwellings and so optimum start sequencing services compliance guide controls are not a requirement and firing of except optimum start is boilers not required Section 6 Community heating systems 81 Table 24 Recommended minimum standards for the design of new community heating systems to maximise efficiency of heat generation and minimise energy use by pumps continued Community New systems Supplementary information heating 3 0 For new community

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